diff --git a/frameworks/innerkitsimpl/codec/src/image_source.cpp b/frameworks/innerkitsimpl/codec/src/image_source.cpp
index 19a62c35d237337513b6b2d1a363a4981b1e1a71..2c897a476596e23aeb733a34f4d0f4186c5f63b9 100644
--- a/frameworks/innerkitsimpl/codec/src/image_source.cpp
+++ b/frameworks/innerkitsimpl/codec/src/image_source.cpp
@@ -5317,10 +5317,20 @@ std::string ImageSource::GetPixelMapName(PixelMap* pixelMap)
         IMAGE_LOGE("%{public}s error, pixelMap is null", __func__);
         return "undefined_";
     }
-    std::string pixelMapStr = "w" + std::to_string(pixelMap->GetWidth()) +
-        "_h" + std::to_string(pixelMap->GetHeight()) +
-        "_streamSize" + std::to_string(sourceStreamPtr_->GetStreamSize()) +
-        "_mimeType" + sourceInfo_.encodedFormat;
+    std::string pixelMapStr = std::to_string(pixelMap->GetWidth()) +
+        "_x" + std::to_string(pixelMap->GetHeight()) +
+        "-streamsize-" + std::to_string(sourceStreamPtr_->GetStreamSize()) +
+        "-mimeType-";
+    std::string prefix = "image/";
+    size_t minFormatLength = 9;
+    size_t maxFormatLength = 20;
+    if ((!sourceInfo_.encodedFormat.empty()) && sourceInfo_.encodedFormat.size() >= minFormatLength &&
+        sourceInfo_.encodedFormat.size() <= maxFormatLength &&
+        sourceInfo_.encodedFormat.compare(0, prefix.size(), prefix) == 0) {
+        pixelMapStr += sourceInfo_.encodedFormat.substr(prefix.size());
+    } else {
+        pixelMapStr += "undefined";
+    }
     IMAGE_LOGD("pixelMapStr is %{public}s", pixelMapStr.c_str());
     return pixelMapStr;
 }
diff --git a/frameworks/innerkitsimpl/test/unittest/image_source_test/image_source_test.cpp b/frameworks/innerkitsimpl/test/unittest/image_source_test/image_source_test.cpp
index 579fb46379c1191d602ebf6f336cae7c7b9e40d7..7dbdb8c908bc3399b8572f156516d7935a59e5c2 100644
--- a/frameworks/innerkitsimpl/test/unittest/image_source_test/image_source_test.cpp
+++ b/frameworks/innerkitsimpl/test/unittest/image_source_test/image_source_test.cpp
@@ -1728,7 +1728,7 @@ HWTEST_F(ImageSourceTest, End2EndTest001, TestSize.Level3)
     ASSERT_EQ(desiredWidth, pixelMap->GetWidth());
     ASSERT_EQ(desiredHeight, pixelMap->GetHeight());
     ASSERT_EQ("undefined_", imageSource->GetPixelMapName(nullptr));
-    ASSERT_EQ("w400_h200_streamSize27897_mimeTypeimage/jpeg", imageSource->GetPixelMapName(pixelMap.get()));
+    ASSERT_EQ("400x200-streamsize-27897-mimetype-jpeg", imageSource->GetPixelMapName(pixelMap.get()));
 }
 
 /**