diff --git a/frameworks/core/components_ng/pattern/dialog/dialog_layout_algorithm.cpp b/frameworks/core/components_ng/pattern/dialog/dialog_layout_algorithm.cpp
index 6b24ea42fe608c4de95e4a9355dfad3e59cfe1ce..34bf17ee9100166f2aeb3ec438489414f137c28d 100644
--- a/frameworks/core/components_ng/pattern/dialog/dialog_layout_algorithm.cpp
+++ b/frameworks/core/components_ng/pattern/dialog/dialog_layout_algorithm.cpp
@@ -1073,6 +1073,28 @@ OffsetF DialogLayoutAlgorithm::AdjustChildPosition(
     auto keyboardInsert = manager->GetKeyboardInset();
     auto childBottom = childOffset.GetY() + childSize.Height() + embeddedDialogOffsetY_ + stackRootDialogOffsetY_;
     auto paddingBottom = static_cast<float>(GetPaddingBottom());
+
+    const bool enabletruncate = true;
+    
+    // 如果dialog底部在安全区之下
+    if(enabletruncate && childBottom > safeAreaInsets_.bottom_.start){
+        auto limitPos = std::min(childOffset.GetY(),
+            static_cast<float>(safeAreaInsets_.top_.Length() + AVOID_LIMIT_PADDING.ConvertToPx()));
+        childOffset.SetY(childOffset.GetY() - (childBottom - safeAreaInsets_.bottom_.start));
+        
+        // 缩小逻辑
+        if(childOffset.GetY() < limitPos){
+            resizeFlag_ = true;
+            dialogChildSize_ = childSize;
+            if (limitPos - childOffset.GetY() > dialogChildSize_.Height()) {
+                dialogChildSize_.MinusHeight(dialogChildSize_.Height());
+            } else {
+                dialogChildSize_.MinusHeight(limitPos - childOffset.GetY());
+            }
+            childOffset.SetY(limitPos);
+        }
+    }
+
     if (needAvoidKeyboard && keyboardInsert.Length() > 0 && childBottom > (keyboardInsert.start - paddingBottom)) {
         auto limitPos = std::min(childOffset.GetY(),
             static_cast<float>(safeAreaInsets_.top_.Length() + AVOID_LIMIT_PADDING.ConvertToPx()));