diff --git a/apisix/plugins/jwt-auth.lua b/apisix/plugins/jwt-auth.lua
index eea71597b513..d1a9c0183a92 100644
--- a/apisix/plugins/jwt-auth.lua
+++ b/apisix/plugins/jwt-auth.lua
@@ -361,7 +361,8 @@ function _M.rewrite(conf, ctx)
     local jwt_obj = jwt:load_jwt(jwt_token)
     core.log.info("jwt object: ", core.json.delay_encode(jwt_obj))
     if not jwt_obj.valid then
-        return 401, {message = jwt_obj.reason}
+        core.log.error("JWT token invalid: ", jwt_obj.reason)
+        return 401, {message = "JWT token invalid"}
     end
 
     local user_key = jwt_obj.payload and jwt_obj.payload.key
@@ -392,7 +393,8 @@ function _M.rewrite(conf, ctx)
     core.log.info("jwt object: ", core.json.delay_encode(jwt_obj))
 
     if not jwt_obj.verified then
-        return 401, {message = jwt_obj.reason}
+        core.log.error("JWT token verify failed: ", jwt_obj.reason)
+        return 401, {message = "JWT token verify failed"}
     end
 
     consumer_mod.attach_consumer(ctx, consumer, consumer_conf)
diff --git a/t/plugin/jwt-auth.t b/t/plugin/jwt-auth.t
index 87eb5802a064..9c2f74cc8f43 100644
--- a/t/plugin/jwt-auth.t
+++ b/t/plugin/jwt-auth.t
@@ -214,7 +214,9 @@ GET /hello
 GET /hello?jwt=invalid-eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJrZXkiOiJ1c2VyLWtleSIsImV4cCI6MTU2Mzg3MDUwMX0.pPNVvh-TQsdDzorRwa-uuiLYiEBODscp9wv0cwD6c68
 --- error_code: 401
 --- response_body
-{"message":"invalid header: invalid-eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9"}
+{"message":"JWT token invalid"}
+--- error_log
+JWT token invalid: invalid header: invalid-eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9
 
 
 
@@ -223,7 +225,9 @@ GET /hello?jwt=invalid-eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJrZXkiOiJ1c2VyLWtl
 GET /hello?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJrZXkiOiJ1c2VyLWtleSIsImV4cCI6MTU2Mzg3MDUwMX0.pPNVvh-TQsdDzorRwa-uuiLYiEBODscp9wv0cwD6c68
 --- error_code: 401
 --- response_body
-{"message":"'exp' claim expired at Tue, 23 Jul 2019 08:28:21 GMT"}
+{"message":"JWT token verify failed"}
+--- error_log
+JWT token verify failed: 'exp' claim expired at Tue, 23 Jul 2019 08:28:21 GMT
 
 
 
@@ -274,7 +278,9 @@ GET /hello
 Authorization: bearer invalid-eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJrZXkiOiJ1c2VyLWtleSIsImV4cCI6MTg3OTMxODU0MX0.fNtFJnNmJgzbiYmGB0Yjvm-l6A6M4jRV1l4mnVFSYjs
 --- error_code: 401
 --- response_body
-{"message":"invalid header: invalid-eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9"}
+{"message":"JWT token invalid"}
+--- error_log
+JWT token invalid: invalid header: invalid-eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9
 
 
 
@@ -425,7 +431,9 @@ hello world
 GET /hello?jwt=invalid-eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJrZXkiOiJ1c2VyLWtleSIsImV4cCI6MTU2Mzg3MDUwMX0.pPNVvh-TQsdDzorRwa-uuiLYiEBODscp9wv0cwD6c68
 --- error_code: 401
 --- response_body
-{"message":"invalid header: invalid-eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9"}
+{"message":"JWT token invalid"}
+--- error_log
+JWT token invalid: invalid header: invalid-eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9
 
 
 
@@ -436,7 +444,9 @@ GET /hello
 Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJrZXkiOiJ1c2VyLWtleSIsImV4cCI6MTg3OTMxODU0MX0.fNtFJnNmJgzbiYmGB0Yjvm-l6A6M4jRV1l4mnVFSYjs
 --- error_code: 401
 --- response_body
-{"message":"signature mismatch: fNtFJnNmJgzbiYmGB0Yjvm-l6A6M4jRV1l4mnVFSYjs"}
+{"message":"JWT token verify failed"}
+--- error_log
+JWT token verify failed: signature mismatch: fNtFJnNmJgzbiYmGB0Yjvm-l6A6M4jRV1l4mnVFSYjs