diff --git a/wm/src/window_scene_session_impl.cpp b/wm/src/window_scene_session_impl.cpp
index 793fd300ec037a2cb3bb78619cda29b29497e3fb..58ce4a2a6a84a321aac4d1bb5026dda2eb171eea 100644
--- a/wm/src/window_scene_session_impl.cpp
+++ b/wm/src/window_scene_session_impl.cpp
@@ -1408,8 +1408,10 @@ void WindowSceneSessionImpl::CalculateNewLimitsByLimits(
         customizedLimits = property_->GetConfigWindowLimitsVP();
         customizedLimits.maxWidth_ = static_cast<uint32_t>(customizedLimits.maxWidth_ * virtualPixelRatio);
         customizedLimits.maxHeight_ = static_cast<uint32_t>(customizedLimits.maxHeight_ * virtualPixelRatio);
-        customizedLimits.minWidth_ = static_cast<uint32_t>(customizedLimits.minWidth_ * virtualPixelRatio);
-        customizedLimits.minHeight_ = static_cast<uint32_t>(customizedLimits.minHeight_ * virtualPixelRatio);
+        if (!WindowHelper::IsSystemWindow(GetType())) {
+            customizedLimits.minWidth_ = static_cast<uint32_t>(customizedLimits.minWidth_ * virtualPixelRatio);
+            customizedLimits.minHeight_ = static_cast<uint32_t>(customizedLimits.minHeight_ * virtualPixelRatio);
+        }
     }
     newLimits = systemLimits;
     uint32_t limitMinWidth = systemLimits.minWidth_;
diff --git a/wm/test/unittest/window_scene_session_impl_test5.cpp b/wm/test/unittest/window_scene_session_impl_test5.cpp
index a9dbacb3f8cb0dddb5574632c3b23df2a9adca83..a637973069ba5caf860f9f5c0918fdb0c01c8492 100644
--- a/wm/test/unittest/window_scene_session_impl_test5.cpp
+++ b/wm/test/unittest/window_scene_session_impl_test5.cpp
@@ -2274,6 +2274,63 @@ HWTEST_F(WindowSceneSessionImplTest5, UpdateImmersiveBySwitchMode, TestSize.Leve
     window->UpdateImmersiveBySwitchMode(false);
     EXPECT_EQ(window->enableImmersiveMode_, true);
 }
+
+/**
+ * @tc.name: CalculateNewLimitsByLimits
+ * @tc.desc: test function: CalculateNewLimitsByLimits
+ * @tc.type: FUNC
+ */
+HWTEST_F(WindowSceneSessionImplTest5, CalculateNewLimitsByLimits, TestSize.Level1)
+{
+    sptr<WindowOption> option = sptr<WindowOption>::MakeSptr();
+    sptr<WindowSceneSessionImpl> testImpl = sptr<WindowSceneSessionImpl>::MakeSptr(option);
+    WindowLimits customizedLimits = {200, 200, 10, 10, 0.0f, 0.0f, 1.0f};
+    WindowLimits expectLimits;
+    WindowLimits newLimits;
+    testImpl->property_->SetDisplayId(0);
+    testImpl->SetConfigWindowLimitsVP(customizedLimits);
+    
+    // set system limits
+    testImpl->windowSystemConfig_.maxFloatingWindowSize_ = 6240;
+    testImpl->windowSystemConfig_.miniWidthOfMainWindow_ = 1;
+    testImpl->windowSystemConfig_.miniHeightOfMainWindow_ = 1;
+    testImpl->windowSystemConfig_.miniWidthOfSubWindow_ = 1;
+    testImpl->windowSystemConfig_.miniHeightOfSubWindow_ = 1;
+    testImpl->windowSystemConfig_.miniWidthOfDialogWindow_ = 1;
+    testImpl->windowSystemConfig_.miniHeightOfDialogWindow_ = 1;
+
+    // user set flag is false, window type is mian window
+    testImpl->userLimitsSet_ = false;
+    customizedLimits = {200, 200, 10, 10, 0.0f, 0.0f, 1.0f};
+    expectLimits = {400, 400, 20, 20, 0.0f, 0.0f, 1.0f};
+    testImpl->property_->SetWindowType(WindowType::APP_MAIN_WINDOW_BASE);
+    testImpl->CalculateNewLimitsByLimits(newLimits, customizedLimits, 2);
+    EXPECT_EQ(customizedLimits->maxWidth_, expectLimits->maxWidth_);
+    EXPECT_EQ(customizedLimits->maxHeight_, expectLimits->maxHeight_);
+    EXPECT_EQ(customizedLimits->minWidth_, expectLimits->minWidth_);
+    EXPECT_EQ(customizedLimits->minHeight_, expectLimits->minHeight_);
+
+    // user set flag is false, window type is sys window
+    testImpl->property_->SetWindowType(WindowType::WINDOW_TYPE_GLOBAL_SEARCH);
+    customizedLimits = {200, 200, 10, 10, 0.0f, 0.0f, 1.0f};
+    expectLimits = {400, 400, 10, 10, 0.0f, 0.0f, 1.0f};
+    testImpl->CalculateNewLimitsByLimits(newLimits, customizedLimits, 2);
+    EXPECT_EQ(customizedLimits->maxWidth_, expectLimits->maxWidth_);
+    EXPECT_EQ(customizedLimits->maxHeight_, expectLimits->maxHeight_);
+    EXPECT_EQ(customizedLimits->minWidth_, expectLimits->minWidth_);
+    EXPECT_EQ(customizedLimits->minHeight_, expectLimits->minHeight_);
+
+    // user set flag is true
+    testImpl->userLimitsSet_ = true;
+    customizedLimits = {200, 200, 10, 10, 0.0f, 0.0f, 1.0f};
+    WindowLimits userLimits = {900, 900, 100, 100, 0.0f, 0.0f, 1.0f};
+    testImpl->property_->SetUserWindowLimits(userLimits);
+    testImpl->CalculateNewLimitsByLimits(newLimits, customizedLimits, 2);
+    EXPECT_EQ(customizedLimits->maxWidth_, userLimits->maxWidth_);
+    EXPECT_EQ(customizedLimits->maxHeight_, userLimits->maxHeight_);
+    EXPECT_EQ(customizedLimits->minWidth_, userLimits->minWidth_);
+    EXPECT_EQ(customizedLimits->minHeight_, userLimits->minHeight_);
+}
 }
 } // namespace Rosen
 } // namespace OHOS
\ No newline at end of file