diff --git a/prow/config/config.yaml b/prow/config/config.yaml
index f0e34b0b..95a36866 100644
--- a/prow/config/config.yaml
+++ b/prow/config/config.yaml
@@ -2354,14 +2354,9 @@ tide:
     pingcap/docs-cn: squash
     pingcap/docs-dm: squash
     pingcap/docs-tidb-operator: squash
-    pingcap/docs-appdev: squash
-    pingcap/dumpling: squash
-    pingcap/dm: squash
     pingcap/tidb-tools: squash
     pingcap/tiflow: squash
-    pingcap/br: squash
     pingcap/tidb-binlog: squash
-    pingcap/parser: squash
     pingcap/tiflash: squash
     pingcap/tiflash-scripts: squash
     pingcap/ng-monitoring: squash
@@ -2518,21 +2513,6 @@ tide:
     pingcap/docs-tidb-operator:
       title: "{{ .Title }} (#{{ .Number }})"
       body: " "
-    pingcap/docs-appdev:
-      title: "{{ .Title }} (#{{ .Number }})"
-      body: " "
-    pingcap/dumpling:
-      title: "{{ .Title }} (#{{ .Number }})"
-      body: " "
-    pingcap/dm:
-      title: "{{ .Title }} (#{{ .Number }})"
-      body: " "
-    pingcap/br:
-      title: "{{ .Title }} (#{{ .Number }})"
-      body: " "
-    pingcap/parser:
-      title: "{{ .Title }} (#{{ .Number }})"
-      body: " "
     pingcap/tiflash:
       title: "{{ .Title }} (#{{ .Number }})"
       body: |
@@ -2598,9 +2578,6 @@ tide:
         - pingcap/docs-cn
         - pingcap/docs-dm
         - pingcap/docs-tidb-operator
-        - pingcap/docs-appdev
-        - pingcap/dm
-        - pingcap/parser
         - pingcap/tiflash-scripts
         - pingcap/ng-monitoring
         - pingcap/tispark
@@ -2642,7 +2619,6 @@ tide:
 
     # for release branches
     - repos:
-        - pingcap/br
         - pingcap/dumpling
         - pingcap/tidb
         - pingcap/tidb-binlog
@@ -2681,7 +2657,6 @@ tide:
 
     # for hotFix branches
     - repos:
-        - pingcap/br
         - pingcap/dumpling
         - pingcap/tidb
         - pingcap/tidb-binlog
@@ -2720,9 +2695,7 @@ tide:
 
     # for trunk branches        
     - repos:
-        - pingcap/dumpling
         - pingcap/tidb-tools
-        - pingcap/br
         - pingcap/tiflow
         - pingcap/tidb-binlog
         - pingcap/tiflash
diff --git a/prow/config/external_plugins_config.yaml b/prow/config/external_plugins_config.yaml
index 2cbdbe31..7c60a35c 100644
--- a/prow/config/external_plugins_config.yaml
+++ b/prow/config/external_plugins_config.yaml
@@ -19,14 +19,9 @@ ti-community-lgtm:
       - tikv/community
       - pingcap/community
       - pingcap/tidb
-      - pingcap/docs-appdev
-      - pingcap/dumpling
-      - pingcap/dm
       - pingcap/tidb-tools
       - pingcap/tiflow
-      - pingcap/br
       - pingcap/tidb-binlog
-      - pingcap/parser
       - pingcap/tiflash
       - pingcap/tiflash-scripts
       - pingcap/ng-monitoring
@@ -66,14 +61,9 @@ ti-community-merge:
       - pingcap/docs-cn
       - pingcap/docs-dm
       - pingcap/docs-tidb-operator
-      - pingcap/docs-appdev
-      - pingcap/dumpling
-      - pingcap/dm
       - pingcap/tidb-tools
       - pingcap/tiflow
-      - pingcap/br
       - pingcap/tidb-binlog
-      - pingcap/parser
       - pingcap/tiflash
       - pingcap/tiflash-scripts
       - pingcap/ng-monitoring
@@ -395,22 +385,6 @@ ti-community-owners:
         use_github_team: true
         default_require_lgtm: 1
   - repos:
-      - pingcap/docs-appdev
-    default_require_lgtm: 2
-    use_github_team: true
-    committer_teams:
-      - docs-maintainers
-      - docs-committers
-    reviewer_teams:
-      - docs-reviewers
-    sig_endpoint: https://bots.tidb.io/ti-community-bot
-    require_lgtm_label_prefix: require-LGT
-    branches:
-      add-tdds-documents:
-        use_github_team: true
-        default_require_lgtm: 1
-  - repos:
-      - pingcap/dumpling
       - pingcap/tidb-tools
     default_require_lgtm: 1
     use_github_team: true
@@ -422,9 +396,7 @@ ti-community-owners:
     sig_endpoint: https://bots.tidb.io/ti-community-bot
     require_lgtm_label_prefix: require-LGT
   - repos:
-      - pingcap/dm
       - pingcap/tiflow
-      - pingcap/br
       - pingcap/tidb-binlog
     default_require_lgtm: 2
     use_github_team: true
@@ -435,17 +407,6 @@ ti-community-owners:
       - migration-reviewers
     sig_endpoint: https://bots.tidb.io/ti-community-bot
     require_lgtm_label_prefix: require-LGT
-  - repos:
-      - pingcap/parser
-    default_require_lgtm: 2
-    use_github_team: true
-    committer_teams:
-      - tidb-maintainers
-      - tidb-committers
-    reviewer_teams:
-      - tidb-reviewers
-    sig_endpoint: https://bots.tidb.io/ti-community-bot
-    require_lgtm_label_prefix: require-LGT
   - repos:
       - pingcap/tiflash
     default_require_lgtm: 2
@@ -880,75 +841,6 @@ ti-community-label:
       - "website"
     exclude_labels:
       - status/can-merge
-  - repos:
-      - pingcap/docs-appdev
-    prefixes:
-      - closed
-      - size
-      - status
-      - translation
-      - type
-    additional_labels:
-      - "contribution"
-      - "first-time-contributor"
-      - "requires-followup"
-      - "good-first-issue"
-      - "missing-translation-status"
-      - "needs-rebase"
-      - "help-wanted"
-      - "require-LGT1"
-      - "require-LGT2"
-      - "require-LGT3"
-      - "for-future-release"
-      - "website"
-    exclude_labels:
-      - status/can-merge
-  - repos:
-      - pingcap/dumpling
-    prefixes:
-      - difficulty
-      - priority
-      - severity
-      - status
-      - type
-    additional_labels:
-      - "Hacktoberfest"
-      - "good first issue"
-      - "hptc"
-    exclude_labels:
-      - status/can-merge
-  - repos:
-      - pingcap/dm
-    prefixes:
-      - difficulty
-      - feature
-      - priority
-      - severity
-      - status
-      - type
-    additional_labels:
-      - "Hacktoberfest"
-      - "TiDB-5.0"
-      - "already-cherry-pick-1.0"
-      - "already-cherry-pick-2.0"
-      - "already-update-dm-ansible"
-      - "already-update-docs"
-      - "already-update-release-note"
-      - "dependencies"
-      - "good first issue"
-      - "help wanted"
-      - "high-performance"
-      - "hptc"
-      - "javascript"
-      - "needs-cherry-pick-release-1.0"
-      - "needs-cherry-pick-release-2.0"
-      - "needs-update-dm-ansible"
-      - "needs-update-docs"
-      - "needs-update-release-note"
-      - "question"
-      - "release-track"
-    exclude_labels:
-      - status/can-merge
   - repos:
       - pingcap/tidb-tools
     prefixes:
@@ -967,30 +859,6 @@ ti-community-label:
       - "wontfix"
     exclude_labels:
       - status/can-merge
-  - repos:
-      - pingcap/br
-    prefixes:
-      - priority
-      - component
-      - difficulty
-      - severity
-      - status
-      - type
-    additional_labels:
-      - "Hacktoberfest"
-      - "duplicate"
-      - "good first issue"
-      - "invalid"
-      - "needs-cherry-pick-release-3.1"
-      - "needs-cherry-pick-release-4.0"
-      - "needs-cherry-pick-release-5.0"
-      - "needs-cherry-pick-release-5.1"
-      - "needs-cherry-pick-release-5.2"
-      - "question"
-      - "release-blocker"
-      - "wontfix"
-    exclude_labels:
-      - status/can-merge
   - repos:
       - pingcap/tiflow
     prefixes:
@@ -1092,31 +960,6 @@ ti-community-label:
       - "wontfix"
     exclude_labels:
       - status/can-merge
-  - repos:
-      - pingcap/parser
-    prefixes:
-      - priority
-      - severity
-      - status
-      - type
-    additional_labels:
-      - "contribution"
-      - "DNM"
-      - "first-time-contributor"
-      - "for new contributors"
-      - "help wanted"
-      - "hptc"
-      - "needs-cherry-pick-release-2.1"
-      - "needs-cherry-pick-release-3.0"
-      - "needs-cherry-pick-release-3.1"
-      - "needs-cherry-pick-release-4.0"
-      - "needs-cherry-pick-release-5.0"
-      - "needs-cherry-pick-release-5.1"
-      - "needs-cherry-pick-release-5.2"
-      - "needs-rebase"
-      - "question"
-    exclude_labels:
-      - status/can-merge
   - repos:
       - pingcap/tiflash
     prefixes:
@@ -1398,24 +1241,6 @@ ti-community-blunderbuss:
       - ti-chi-bot
       - ti-srebot
     require_sig_label: true
-  - repos:
-      - pingcap/dumpling
-    pull_owners_endpoint: http://ti-community-owners.prow.svc/ti-community-owners
-    max_request_count: 2
-    include_reviewers:
-      - lance6716
-      - lichunzhu
-      - kennytm
-  - repos:
-      - pingcap/dm
-    pull_owners_endpoint: http://ti-community-owners.prow.svc/ti-community-owners
-    max_request_count: 2
-    include_reviewers:
-      - Ehco1996
-      - glorv
-      - GMHDBJD
-      - lance6716
-      - lichunzhu
   - repos:
       - pingcap/tidb-tools
     pull_owners_endpoint: http://ti-community-owners.prow.svc/ti-community-owners
@@ -1431,20 +1256,6 @@ ti-community-blunderbuss:
       - liuzix
       - 3pointer
       - Little-Wallace
-  - repos:
-      - pingcap/br
-    pull_owners_endpoint: http://ti-community-owners.prow.svc/ti-community-owners
-    max_request_count: 2
-    include_reviewers:
-      - glorv
-      - gozssky
-      - lichunzhu
-      - kennytm
-      - overvenus
-      - 3pointer
-      - Little-Wallace
-      - zwj-coder
-      - Leavrth
   - repos:
       - chaos-mesh/chaos-mesh
     pull_owners_endpoint: http://ti-community-owners.prow.svc/ti-community-owners
@@ -1529,7 +1340,6 @@ ti-community-tars:
       - tikv/pd
       - tikv/tikv
       - pingcap/tidb
-      - pingcap/br
       - pingcap/tidb-binlog
       - pingcap/tiflash-scripts
       - pingcap/tispark
@@ -1578,10 +1388,8 @@ ti-community-tars:
   - repos:
       - pingcap/tidb-operator
       - pingcap/tiup
-      - pingcap/dm
       - pingcap/tidb-tools
       - pingcap/tidb-dashboard
-      - pingcap/parser
     only_when_label: "status/can-merge"
     exclude_labels:
       - needs-rebase
@@ -1600,14 +1408,10 @@ ti-community-label-blocker:
       - tikv/tikv
       - tikv/pd
       - pingcap/tidb
-      - pingcap/parser
       - pingcap/tiflash
       - pingcap/tiflash-scripts
       - pingcap/tispark
-      - pingcap/dumpling
-      - pingcap/dm
       - pingcap/tiflow
-      - pingcap/br
       - pingcap/tidb-tools
       - pingcap/tidb-binlog
       - pingcap/tiunimanager
@@ -1616,7 +1420,6 @@ ti-community-label-blocker:
       - pingcap/docs-cn
       - pingcap/docs-dm
       - pingcap/docs-tidb-operator
-      - pingcap/docs-appdev
       - chaos-mesh/chaos-mesh
       - chaos-mesh/website
       - chaos-mesh/chaosd
@@ -1646,12 +1449,9 @@ ti-community-contribution:
   - repos:
       - ti-community-infra
       - tikv/tikv
-      - pingcap/dm
       - pingcap/tidb-tools
       - pingcap/tiflow
-      - pingcap/br
       - pingcap/tidb-binlog
-      - pingcap/parser
       - chaos-mesh/chaos-mesh
       - chaos-mesh/website
       - chaos-mesh/chaosd
@@ -1659,9 +1459,9 @@ ti-community-contribution:
       - pingcap/docs-cn
       - pingcap/docs-dm
       - pingcap/docs-tidb-operator
-      - pingcap/docs-appdev
 
 ti-community-cherrypicker:
+  # test repos
   - repos:
       - ti-community-infra/test-prod
     label_prefix: needs-cherry-pick-
@@ -1672,16 +1472,6 @@ ti-community-cherrypicker:
       - status/LGT1
       - status/LGT2
       - status/LGT3
-  - repos:
-      - pingcap/dumpling # need delete?
-    label_prefix: needs-cherry-pick-
-    allow_all: true
-    create_issue_on_conflict: false
-    excludeLabels:
-      - status/can-merge
-      - status/LGT1
-      - status/LGT2
-      - status/LGT3
   - repos:
       - tikv/tikv
       - tikv/pd
@@ -1698,9 +1488,6 @@ ti-community-cherrypicker:
   - repos:
       - pingcap/tidb
       - pingcap/tidb-operator
-      - pingcap/dm # need delete?
-      - pingcap/br # need delete?
-      - pingcap/parser # need delete?
       - pingcap/tiflash
       - pingcap/tiflash-scripts
       - pingcap/test-plan
@@ -1918,35 +1705,6 @@ ti-community-issue-triage:
     linked_issue_needs_triage_label: "do-not-merge/needs-triage-completed"
     need_cherry_pick_label_prefix: "needs-cherry-pick-release-"
     status_target_url: "https://pingcap.github.io/tidb-dev-guide/contribute-to-tidb/cherrypick-a-pr.html#pass-triage-complete-check"
-  - repos:
-      - pingcap/br
-    maintain_versions:
-      - "4.0"
-      - "5.0"
-      - "5.1"
-      - "5.2"
-      - "5.3"
-      - "5.4"
-      - "6.0"
-      - "6.1"
-      - "6.2"
-      - "6.3"
-      - "6.4"
-      - "6.5"
-    wontfix_versions:
-      - "4.0"
-      - "5.0"
-      - "5.1"
-      - "5.2"
-      - "6.0"
-      - "6.2"
-      - "6.3"
-      - "6.4"
-    affects_label_prefix: "affects-"
-    may_affects_label_prefix: "may-affects-"
-    linked_issue_needs_triage_label: "do-not-merge/needs-triage-completed"
-    need_cherry_pick_label_prefix: "needs-cherry-pick-release-"
-    status_target_url: "https://pingcap.github.io/tidb-dev-guide/contribute-to-tidb/cherrypick-a-pr.html#pass-triage-complete-check"
   - repos:
       - pingcap/tiflow
       - pingcap/tiflash
diff --git a/prow/config/plugins.yaml b/prow/config/plugins.yaml
index 06e69f08..a5869099 100644
--- a/prow/config/plugins.yaml
+++ b/prow/config/plugins.yaml
@@ -21,14 +21,9 @@ welcome:
       - pingcap/docs-cn
       - pingcap/docs-tidb-operator
       - pingcap/docs-dm
-      - pingcap/docs-appdev
-      - pingcap/dumpling
-      - pingcap/dm
       - pingcap/tidb-tools
       - pingcap/tiflow
-      - pingcap/br
       - pingcap/tidb-binlog
-      - pingcap/parser
       - pingcap/tiflash
       - pingcap/tiflash-scripts
       - pingcap/tiunimanager
@@ -286,31 +281,6 @@ plugins:
     - require-matching-label
     - lifecycle
     - retitle
-  pingcap/docs-appdev:
-    - welcome
-    - assign
-    - hold
-    - wip
-    - size
-    - require-matching-label
-    - lifecycle
-    - retitle
-    - override
-  pingcap/dumpling:
-    - welcome
-    - assign
-    - hold
-    - wip
-    - size
-    - lifecycle
-    - cherry-pick-unapproved
-  pingcap/dm:
-    - welcome
-    - assign
-    - hold
-    - wip
-    - size
-    - lifecycle
   pingcap/tidb-tools:
     - welcome
     - assign
@@ -328,14 +298,6 @@ plugins:
     - lifecycle
     - cherry-pick-unapproved
     - release-note
-  pingcap/br:
-    - welcome
-    - assign
-    - hold
-    - wip
-    - size
-    - lifecycle
-    - cherry-pick-unapproved
   pingcap/tidb-binlog:
     - welcome
     - assign
@@ -344,12 +306,6 @@ plugins:
     - size
     - lifecycle
     - cherry-pick-unapproved
-  pingcap/parser:
-    - welcome
-    - assign
-    - hold
-    - wip
-    - lifecycle
   pingcap/tiflash:
     - welcome
     - assign
@@ -895,92 +851,6 @@ external_plugins:
       events:
         - pull_request
         - issue_comment
-  pingcap/docs-appdev:
-    - name: ti-community-lgtm
-      events:
-        - pull_request_review
-        - pull_request
-    - name: ti-community-merge
-      events:
-        - issue_comment
-        - pull_request_review_comment
-        - pull_request
-    - name: needs-rebase
-      events:
-        - pull_request
-        - issue_comment
-    - name: ti-community-label
-      events:
-        - issue_comment
-    - name: ti-community-label-blocker
-      events:
-        - pull_request
-    - name: ti-community-contribution
-      events:
-        - pull_request
-  pingcap/dumpling:
-    - name: ti-community-lgtm
-      events:
-        - pull_request_review
-        - pull_request
-    - name: ti-community-merge
-      events:
-        - issue_comment
-        - pull_request_review_comment
-        - pull_request
-    - name: needs-rebase
-      events:
-        - pull_request
-        - issue_comment
-    - name: ti-community-label
-      events:
-        - issue_comment
-    - name: ti-community-label-blocker
-      events:
-        - pull_request
-    - name: ti-community-blunderbuss
-      events:
-        - pull_request
-        - issue_comment
-    - name: ti-community-cherrypicker
-      events:
-        - pull_request
-        - issue_comment
-  pingcap/dm:
-    - name: ti-community-lgtm
-      events:
-        - pull_request_review
-        - pull_request
-    - name: ti-community-merge
-      events:
-        - issue_comment
-        - pull_request_review_comment
-        - pull_request
-    - name: needs-rebase
-      events:
-        - pull_request
-        - issue_comment
-    - name: ti-community-label
-      events:
-        - issue_comment
-    - name: ti-community-label-blocker
-      events:
-        - pull_request
-    - name: ti-community-blunderbuss
-      events:
-        - pull_request
-        - issue_comment
-    - name: ti-community-tars
-      events:
-        - issue_comment
-        - push
-    - name: ti-community-contribution
-      events:
-        - pull_request
-    - name: ti-community-cherrypicker
-      events:
-        - pull_request
-        - issue_comment
   pingcap/tidb-tools:
     - name: ti-community-lgtm
       events:
@@ -1054,41 +924,6 @@ external_plugins:
         - pull_request
         - issues
         - issue_comment
-  pingcap/br:
-    - name: ti-community-lgtm
-      events:
-        - pull_request_review
-        - pull_request
-    - name: ti-community-merge
-      events:
-        - issue_comment
-        - pull_request_review_comment
-        - pull_request
-    - name: needs-rebase
-      events:
-        - pull_request
-        - issue_comment
-    - name: ti-community-label
-      events:
-        - issue_comment
-    - name: ti-community-label-blocker
-      events:
-        - pull_request
-    - name: ti-community-blunderbuss
-      events:
-        - pull_request
-        - issue_comment
-    - name: ti-community-tars
-      events:
-        - issue_comment
-        - push
-    - name: ti-community-contribution
-      events:
-        - pull_request
-    - name: ti-community-cherrypicker
-      events:
-        - pull_request
-        - issue_comment
   pingcap/tidb-binlog:
     - name: ti-community-lgtm
       events:
@@ -1123,37 +958,6 @@ external_plugins:
     - name: ti-community-format-checker
       events:
         - pull_request
-  pingcap/parser:
-    - name: ti-community-lgtm
-      events:
-        - pull_request_review
-        - pull_request
-    - name: ti-community-merge
-      events:
-        - issue_comment
-        - pull_request_review_comment
-        - pull_request
-    - name: needs-rebase
-      events:
-        - pull_request
-        - issue_comment
-    - name: ti-community-tars
-      events:
-        - issue_comment
-        - push
-    - name: ti-community-contribution
-      events:
-        - pull_request
-    - name: ti-community-label
-      events:
-        - issue_comment
-    - name: ti-community-label-blocker
-      events:
-        - pull_request
-    - name: ti-community-cherrypicker
-      events:
-        - pull_request
-        - issue_comment
   pingcap/tiflash:
     - name: ti-community-lgtm
       events: