diff --git a/frontend/src/components/MyApplicationItem/MyMissionItem/__tests__/useMission.test.ts b/frontend/src/components/MyApplicationItem/MyMissionItem/__tests__/useMission.test.ts
new file mode 100644
index 000000000..d5d94e113
--- /dev/null
+++ b/frontend/src/components/MyApplicationItem/MyMissionItem/__tests__/useMission.test.ts
@@ -0,0 +1,127 @@
+import { renderHook, act } from "@testing-library/react";
+import useMission from "../useMission";
+import useRefresh from "../useRefresh";
+import useMissionJudgment from "../useMissionJudgment";
+import { generatePath, useNavigate } from "react-router-dom";
+import { BUTTON_LABEL } from "../../../../constants/recruitment";
+import { Mission } from "../../../../../types/domains/recruitments";
+
+jest.mock("../useRefresh");
+jest.mock("../useMissionJudgment");
+jest.mock("react-router-dom", () => ({
+  generatePath: jest.fn(),
+  useNavigate: jest.fn(),
+}));
+
+describe("useMission", () => {
+  const mockMission: Mission = {
+    id: 1,
+    title: "Test Mission",
+    description: "Test Description",
+    submittable: true,
+    submitted: false,
+    startDateTime: "2023-01-01T00:00:00",
+    endDateTime: "2023-12-31T23:59:59",
+    status: "SUBMITTING",
+    runnable: true,
+    judgment: null,
+  };
+
+  const mockRecruitmentId = "123";
+
+  beforeEach(() => {
+    // useRefresh 훅의 반환값을 실제 사용 사례에 맞게 모킹
+    (useRefresh as jest.Mock).mockReturnValue({
+      isRefreshAvailable: true,
+      fetchRefreshedResultData: jest
+        .fn()
+        .mockResolvedValue({ ...mockMission, title: "Refreshed Mission" }),
+    });
+
+    // useMissionJudgment 훅의 반환값을 실제 사용 사례에 맞게 모킹
+    (useMissionJudgment as jest.Mock).mockReturnValue({
+      isJudgmentAvailable: true,
+      fetchJudgmentMissionResult: jest
+        .fn()
+        .mockResolvedValue({ ...mockMission, title: "Judged Mission" }),
+    });
+
+    // react-router-dom 함수들을 실제 사용 사례에 맞게 모킹
+    const mockNavigate = jest.fn();
+    (useNavigate as jest.Mock).mockReturnValue(mockNavigate);
+    (generatePath as jest.Mock).mockImplementation((path, params) => {
+      // 간단한 구현. 실제 상황에 맞게 조정 필요
+      return path.replace(/:(\w+)/g, (_, key) => params[key]);
+    });
+  });
+
+  it("초기 상태를 올바르게 설정해야 한다", () => {
+    const { result } = renderHook(() =>
+      useMission({ mission: mockMission, recruitmentId: mockRecruitmentId })
+    );
+
+    expect(result.current.getter.missionItem).toEqual(mockMission);
+    expect(result.current.getter.applyButtonLabel).toBe(BUTTON_LABEL.SUBMIT);
+    expect(result.current.getter.formattedStartDateTime).toBe("2023-01-01 00:00");
+    expect(result.current.getter.formattedEndDateTime).toBe("2023-12-31 23:59");
+    expect(result.current.getter.isJudgmentAvailable).toBe(true);
+    expect(result.current.getter.isRefreshAvailable).toBe(true);
+  });
+
+  it("mission prop이 변경되면 missionItem 상태를 업데이트해야 한다", () => {
+    const { result, rerender } = renderHook(
+      ({ mission }) => useMission({ mission, recruitmentId: mockRecruitmentId }),
+      { initialProps: { mission: mockMission } }
+    );
+
+    const updatedMission = { ...mockMission, title: "Updated Mission" };
+    rerender({ mission: updatedMission });
+
+    expect(result.current.getter.missionItem).toEqual(updatedMission);
+  });
+
+  it("routeToAssignmentSubmit 함수가 올바르게 동작해야 한다", () => {
+    const mockNavigate = jest.fn();
+    (useNavigate as jest.Mock).mockReturnValue(mockNavigate);
+
+    const { result } = renderHook(() =>
+      useMission({ mission: mockMission, recruitmentId: mockRecruitmentId })
+    );
+
+    act(() => {
+      result.current.routeToAssignmentSubmit({
+        recruitmentId: mockRecruitmentId,
+        mission: mockMission,
+      })();
+    });
+
+    expect(mockNavigate).toHaveBeenCalledWith(
+      { pathname: expect.any(String) },
+      { state: { recruitmentId: mockRecruitmentId, currentMission: mockMission } }
+    );
+  });
+
+  it("requestRefresh 함수가 올바르게 동작해야 한다", async () => {
+    const { result } = renderHook(() =>
+      useMission({ mission: mockMission, recruitmentId: mockRecruitmentId })
+    );
+
+    await act(async () => {
+      await result.current.requestRefresh();
+    });
+
+    expect(result.current.getter.missionItem.title).toBe("Refreshed Mission");
+  });
+
+  it("requestMissionJudgment 함수가 올바르게 동작해야 한다", async () => {
+    const { result } = renderHook(() =>
+      useMission({ mission: mockMission, recruitmentId: mockRecruitmentId })
+    );
+
+    await act(async () => {
+      await result.current.requestMissionJudgment();
+    });
+
+    expect(result.current.getter.missionItem.title).toBe("Judged Mission");
+  });
+});