diff --git a/plugin-default-impl/nacos-default-auth-plugin/src/main/java/com/alibaba/nacos/plugin/auth/impl/jwt/NacosSignatureAlgorithm.java b/plugin-default-impl/nacos-default-auth-plugin/src/main/java/com/alibaba/nacos/plugin/auth/impl/jwt/NacosSignatureAlgorithm.java
index 335375b4567..38b1e1e206b 100644
--- a/plugin-default-impl/nacos-default-auth-plugin/src/main/java/com/alibaba/nacos/plugin/auth/impl/jwt/NacosSignatureAlgorithm.java
+++ b/plugin-default-impl/nacos-default-auth-plugin/src/main/java/com/alibaba/nacos/plugin/auth/impl/jwt/NacosSignatureAlgorithm.java
@@ -203,7 +203,9 @@ private Mac getMacInstance(Key key) {
             Mac instance = Mac.getInstance(jcaName);
             instance.init(key);
             return instance;
-        } catch (NoSuchAlgorithmException | InvalidKeyException e) {
+        } catch (NoSuchAlgorithmException e) {
+            throw new IllegalArgumentException("No Such Algorithm: " + jcaName);
+        } catch (InvalidKeyException e) {
             throw new IllegalArgumentException("Invalid key: " + key);
         }
     }