diff --git a/libpurgeablemem/cpp/src/purgeable_resource_manager.cpp b/libpurgeablemem/cpp/src/purgeable_resource_manager.cpp
index 7e7dffb308f8d763a2c24c8c31db53a8b6453470..cd40cb986f9e7e51dec84ac24a2678e7f491d6f4 100644
--- a/libpurgeablemem/cpp/src/purgeable_resource_manager.cpp
+++ b/libpurgeablemem/cpp/src/purgeable_resource_manager.cpp
@@ -201,6 +201,10 @@ void PurgeableResourceManager::EndAccessPurgeableMem()
 
 void PurgeableResourceManager::ChangeDataValid(std::shared_ptr<PurgeableMemBase> resourcePtr, bool isVaild) const
 {
+    if (resourcePtr == nullptr) {
+        return;
+    }
+
     StartTrace(HITRACE_TAG_ZIMAGE, "OHOS::PurgeableMem::PurgeableResourceManager::ChangeDataValid");
     std::lock_guard<ffrt::mutex> dataLock(resourcePtr->dataLock_);
     resourcePtr->SetDataValid(isVaild);
diff --git a/libpurgeablemem/test/purgeableresourcemanager_test.cpp b/libpurgeablemem/test/purgeableresourcemanager_test.cpp
index 1a2060dd3138fe14f593d62da38438cf11aa9e0e..17ec71e78b5facadcae9c6c0efb5cec9cee3b006 100644
--- a/libpurgeablemem/test/purgeableresourcemanager_test.cpp
+++ b/libpurgeablemem/test/purgeableresourcemanager_test.cpp
@@ -144,10 +144,10 @@ HWTEST_F(PurgeableResourceManagerTest, EndAccessPurgeableMemTest, TestSize.Level
 HWTEST_F(PurgeableResourceManagerTest, AddResourceTest, TestSize.Level1)
 {
     std::shared_ptr<PurgeableMemBase> key = std::make_shared<PurgeableMemBase>();
-    PurgeableResourceManager::GetInstance().AddResource(nullptr);
     PurgeableResourceManager::GetInstance().AddResource(key);
-    EXPECT_EQ(PurgeableResourceManager::GetInstance().lruCache_.Size(), 1);
+    PurgeableResourceManager::GetInstance().AddResource(nullptr);
     PurgeableResourceManager::GetInstance().Clear();
+    EXPECT_EQ(PurgeableResourceManager::GetInstance().lruCache_.Size(), 0);
 }
 
 HWTEST_F(PurgeableResourceManagerTest, RemoveResourceTest, TestSize.Level1)
@@ -155,10 +155,11 @@ HWTEST_F(PurgeableResourceManagerTest, RemoveResourceTest, TestSize.Level1)
     std::shared_ptr<PurgeableMemBase> key = std::make_shared<PurgeableMemBase>();
     PurgeableResourceManager::GetInstance().RemoveResource(nullptr);
     PurgeableResourceManager::GetInstance().AddResource(key);
-    EXPECT_EQ(PurgeableResourceManager::GetInstance().lruCache_.Size(), 1);
     PurgeableResourceManager::GetInstance().RemoveResource(key);
-    EXPECT_EQ(PurgeableResourceManager::GetInstance().lruCache_.Size(), 0);
+    PurgeableResourceManager::GetInstance().ChangeDataValid(key, true) ;
+    PurgeableResourceManager::GetInstance().ChangeDataValid(nullptr, true);
     PurgeableResourceManager::GetInstance().Clear();
+    EXPECT_EQ(PurgeableResourceManager::GetInstance().lruCache_.Size(), 0);
 }
 
 HWTEST_F(PurgeableResourceManagerTest, SetRecentUsedResourceTest, TestSize.Level1)