diff --git a/testsuites/sample/kernel/mem/It_los_mem_002.c b/testsuites/sample/kernel/mem/It_los_mem_002.c
index 976458c040ee8a29441342858a35c8cc2e27e4c8..f0f2463cf913c75e6f6a28b9f76df5da90908717 100644
--- a/testsuites/sample/kernel/mem/It_los_mem_002.c
+++ b/testsuites/sample/kernel/mem/It_los_mem_002.c
@@ -38,8 +38,6 @@ static UINT32 TestCase(VOID)
     UINT32 size;
     void *p = NULL;
 
-    MemStart();
-
     size = 0;
     p = LOS_MemAlloc((void *)LOSCFG_SYS_HEAP_ADDR, size);
     ICUNIT_ASSERT_EQUAL(p, NULL, p);
@@ -48,8 +46,6 @@ static UINT32 TestCase(VOID)
     p = LOS_MemAlloc((void *)LOSCFG_SYS_HEAP_ADDR, size);
     ICUNIT_ASSERT_EQUAL(p, NULL, p);
 
-    MemEnd();
-
     return LOS_OK;
 }
 
diff --git a/testsuites/sample/kernel/mem/it_los_mem.c b/testsuites/sample/kernel/mem/it_los_mem.c
index d2ac5d001de7c44520c9f83bb3707ec385965601..2e9ae9d814afeaab6ca12c55f93dba8d5079c283 100644
--- a/testsuites/sample/kernel/mem/it_los_mem.c
+++ b/testsuites/sample/kernel/mem/it_los_mem.c
@@ -57,7 +57,6 @@ void MemInit(void)
 
 void MemFree(void)
 {
-    (void)memset_s(g_memPool, TEST_MEM_SIZE, 0, TEST_MEM_SIZE);
     (void)LOS_MemDeInit(g_memPool);
 }