diff --git a/frameworks/core/components_ng/pattern/grid/grid_item_theme.h b/frameworks/core/components_ng/pattern/grid/grid_item_theme.h
index 8834b176110ee9cf2b74b6bc93f7d785028f7773..9ccc4b81a3702507864e523b681fc76526335274 100644
--- a/frameworks/core/components_ng/pattern/grid/grid_item_theme.h
+++ b/frameworks/core/components_ng/pattern/grid/grid_item_theme.h
@@ -114,16 +114,16 @@ protected:
     GridItemTheme() = default;
 
 private:
-    Color pressColor_;
-    Color hoverColor_;
+    Color pressColor_ = Color::WHITE;
+    Color hoverColor_ = Color::WHITE;
     int32_t hoverAnimationDuration_ = 250;
     int32_t hoverToPressAnimationDuration_ = 100;
     double disabledAlpha_ = 0.4;
     double enabledAlpha_ = 1.0;
-    Dimension focusRadius_;
+    Dimension focusRadius_ = 0.0_vp;
     Dimension focusPaintPadding_ = 3.0_vp;
-    Color focusColor_;
-    Dimension borderRadiusValue_;
+    Color focusColor_ = Color::WHITE;
+    Dimension borderRadiusValue_ = 0.0_vp;
     NG::BorderRadiusProperty borderRadius_;
 };
 } // namespace OHOS::Ace::NG
diff --git a/frameworks/core/components_ng/pattern/grid/grid_layout_info.h b/frameworks/core/components_ng/pattern/grid/grid_layout_info.h
index e6816f4f962260415a41a83ce7a6bd63b2cf5d34..85b0916d233da9b52150c8a931c8a6b159379f09 100644
--- a/frameworks/core/components_ng/pattern/grid/grid_layout_info.h
+++ b/frameworks/core/components_ng/pattern/grid/grid_layout_info.h
@@ -416,10 +416,10 @@ struct GridLayoutInfo {
     bool offsetEnd_ = false; // true if content bottom is truly reached
 
     // Grid has GridItem whose columnEnd - columnStart > 0
-    bool hasBigItem_;
+    bool hasBigItem_ = false;
 
     // Grid has GridItem whose rowEnd - rowStart > 0
-    bool hasMultiLineItem_;
+    bool hasMultiLineItem_ = false;
     // false when offset is updated but layout hasn't happened, so data is out of sync
     bool synced_ = false;
 
diff --git a/frameworks/core/components_ng/pattern/grid/grid_scroll/grid_scroll_layout_algorithm.h b/frameworks/core/components_ng/pattern/grid/grid_scroll/grid_scroll_layout_algorithm.h
index 6cf6d4e5e53a97bff2f0ed24c581c65c5e3ad328..cb7c3c0f5f4acdedca6e4ebc4b5a0f0ce66a73fe 100644
--- a/frameworks/core/components_ng/pattern/grid/grid_scroll/grid_scroll_layout_algorithm.h
+++ b/frameworks/core/components_ng/pattern/grid/grid_scroll/grid_scroll_layout_algorithm.h
@@ -274,7 +274,7 @@ private:
     std::map<int32_t, float> itemsCrossPosition_;
     int32_t scrollSource_ = SCROLL_FROM_NONE;
     OffsetF childFrameOffset_;
-    GridReloadReason reason_;
+    GridReloadReason reason_ = GridReloadReason::INIT;
 
     ACE_DISALLOW_COPY_AND_MOVE(GridScrollLayoutAlgorithm);
 };