diff --git a/selftest/test/test_cpu_sentry.py b/selftest/test/test_cpu_sentry.py
index 47e366b7633dd38d3291c5444b9e81789223c776..c9af1842de3e705ea72472fd13bc42203d51ddf0 100644
--- a/selftest/test/test_cpu_sentry.py
+++ b/selftest/test/test_cpu_sentry.py
@@ -20,6 +20,7 @@ class TestCaseCpuSentry:
                 ("1-", []),
                 ("-1", []),
                 ("", []),
+                (" ", []),
                 ("1-3,5-8", [1,2,3,5,6,7,8]),
                 ("1-3,8", [1,2,3,8]),
                 ("11", [11]),
@@ -53,6 +54,7 @@ class TestCaseCpuSentry:
                 ("0, 2-4", False),
                 ("1-3-6", False),
                 ("", False),
+                (" ", False),
                 ("xxx", False),
                 ("1-3,,", False),
                 ("1-3,,6", False),
diff --git a/src/sentryPlugins/cpu_sentry/cpu_sentry.py b/src/sentryPlugins/cpu_sentry/cpu_sentry.py
index 0c66fd28e59c711425df5ad4e5231cd0bfa6581f..e7a34ad9b86b0108536517dc6770755a2b092efa 100644
--- a/src/sentryPlugins/cpu_sentry/cpu_sentry.py
+++ b/src/sentryPlugins/cpu_sentry/cpu_sentry.py
@@ -142,6 +142,12 @@ class CpuSentry:
             self.send_result["details"]["code"] = 1002
             self.send_result["result"] = ResultLevel.MINOR_ALM
             self.send_result["details"]["msg"] = "Some CPUs are faulty. The faulty cores are isolated successfully."
+        else:
+            found_fault_cores_set = set(found_fault_cores_list)
+            isolated_cpu_set = set(CpuSentry.cpu_format_convert_to_list(self.send_result["details"]["isolated_cpu_list"]))
+            self.send_result["details"]["code"] = 1002
+            self.send_result["result"] = ResultLevel.MINOR_ALM
+            self.send_result["details"]["msg"] = "Some cores are isolated successfully and some cores ({}) fail to be isolated.".format(list(found_fault_cores_set - isolated_cpu_set))
 
     def cpu_report_result(self):
         """report result to sysSentry"""