diff --git a/uitest/core/ui_model.cpp b/uitest/core/ui_model.cpp
index 2588f28..8ce27b0 100644
--- a/uitest/core/ui_model.cpp
+++ b/uitest/core/ui_model.cpp
@@ -311,7 +311,8 @@ namespace OHOS::uitest {
         widgetsConstructed_ = true;
     }
 
-    static void DfsMarshalWidget(const WidgetTree& tree, const Widget& root, nlohmann::json& dom)
+    static void DfsMarshalWidget(const WidgetTree& tree, const Widget& root, nlohmann::json& dom,
+        const std::map<string, size_t> widgetChildCountMap)
     {
         auto attributesData = json();
         // "< UiAttr::HIERARCHY" : do not expose inner used attributes
@@ -326,14 +327,21 @@ namespace OHOS::uitest {
         attributesData[ATTR_NAMES[UiAttr::BOUNDS].data()] = stream.str();
 
         auto childrenData = json::array();
-        uint32_t childIndex = 0;
-        auto child = tree.GetChildWidget(root, childIndex);
-        while (child != nullptr) {
-            auto childData = json();
-            DfsMarshalWidget(tree, *child, childData);
-            childrenData.emplace_back(childData);
+        uint32_t childIndex = 0, childCount = 0, visitCount = 0;
+        auto hierarchy = root.GetHierarchy();
+        if (widgetChildCountMap.find(hierarchy) != widgetChildCountMap.end()) {
+            childCount = widgetChildCountMap.find(hierarchy)->second;
+        }
+        while (visitCount < childCount) {
+            auto child = tree.GetChildWidget(root, childIndex);
             childIndex++;
-            child = tree.GetChildWidget(root, childIndex);
+            if (child == nullptr) {
+                continue;
+            }
+            auto childData = json();
+            DfsMarshalWidget(tree, *child, childData, widgetChildCountMap);
+            childrenData.emplace_back(childData);
+            visitCount++;
         }
 
         dom["attributes"] = attributesData;
@@ -344,8 +352,20 @@ namespace OHOS::uitest {
     {
         DCHECK(widgetsConstructed_);
         auto root = GetRootWidget();
+        std::map<string, size_t> widgetChildCountMap;
+        for (auto &hierarchy : widgetHierarchyIdDfsOrder_) {
+            if (hierarchy == ROOT_HIERARCHY) {
+                continue;
+            }
+            auto parentHierarchy = WidgetHierarchyBuilder::GetParentWidgetHierarchy(hierarchy);
+            if (widgetChildCountMap.find(parentHierarchy) == widgetChildCountMap.end()) {
+                widgetChildCountMap[parentHierarchy] = 1;
+            } else {
+                widgetChildCountMap[parentHierarchy] = widgetChildCountMap[parentHierarchy] + 1;
+            }
+        }
         if (root != nullptr) {
-            DfsMarshalWidget(*this, *root, dom);
+            DfsMarshalWidget(*this, *root, dom, widgetChildCountMap);
         }
     }
 
diff --git a/uitest/server/system_ui_controller.cpp b/uitest/server/system_ui_controller.cpp
index a95b03d..b2c5fc1 100644
--- a/uitest/server/system_ui_controller.cpp
+++ b/uitest/server/system_ui_controller.cpp
@@ -210,6 +210,7 @@ namespace OHOS::uitest {
                     child = child2;
                 }
                 if (!child.IsVisible()) {
+                    LOG_I("invisible node drop, id: %{public}d", child.GetAccessibilityId());
                     continue;
                 }
                 auto parcel = json();