diff --git a/wmserver/include/window_node_container.h b/wmserver/include/window_node_container.h
index b6a335ac51e9cd0bbdacaade902d68c67e543fc9..a209de1b7f68be9882ae563a84097f04df2e54bb 100644
--- a/wmserver/include/window_node_container.h
+++ b/wmserver/include/window_node_container.h
@@ -129,6 +129,8 @@ private:
     };
     std::unordered_map<uint32_t, WindowPairInfo> pairedWindowMap_;
     sptr<DisplayRects> displayRects_ = new DisplayRects();
+    void RaiseInputMethodWindowPriorityIfNeeded(const sptr<WindowNode>& node) const;
+    const int32_t WINDOW_TYPE_RAISED_INPUT_METHOD = 113;
 };
 }
 }
diff --git a/wmserver/src/window_node_container.cpp b/wmserver/src/window_node_container.cpp
index fb771bc9967731ea7a5f8e88de38ad3e7880ed75..14ed4b7b124cc48260845d19705fca67c9b0ea4f 100644
--- a/wmserver/src/window_node_container.cpp
+++ b/wmserver/src/window_node_container.cpp
@@ -155,6 +155,7 @@ void WindowNodeContainer::UpdateWindowTree(sptr<WindowNode>& node)
 {
     WM_FUNCTION_TRACE();
     node->priority_ = zorderPolicy_->GetWindowPriority(node->GetWindowType());
+    RaiseInputMethodWindowPriorityIfNeeded(node);
     auto parentNode = node->parent_;
     auto position = parentNode->children_.end();
     for (auto iter = parentNode->children_.begin(); iter < parentNode->children_.end(); ++iter) {
@@ -746,5 +747,20 @@ WMError WindowNodeContainer::UpdateWindowPairInfo(sptr<WindowNode>& triggerNode,
     SingletonContainer::Get<WindowInnerManager>().SendMessage(INNER_WM_CREATE_DIVIDER, screenId_, dividerRect);
     return WMError::WM_OK;
 }
+
+void WindowNodeContainer::RaiseInputMethodWindowPriorityIfNeeded(const sptr<WindowNode>& node) const
+{
+    if (node->GetWindowType() != WindowType::WINDOW_TYPE_INPUT_METHOD_FLOAT) {
+        return;
+    }
+    auto iter = std::find_if(aboveAppWindowNode_->children_.begin(), aboveAppWindowNode_->children_.end(),
+                             [](sptr<WindowNode> node) {
+        return node->GetWindowType() == WindowType::WINDOW_TYPE_KEYGUARD;
+    });
+    if (iter != aboveAppWindowNode_->children_.end()) {
+        WLOGFI("raise input method float window priority.");
+        node->priority_ = WINDOW_TYPE_RAISED_INPUT_METHOD;
+    }
 }
 }
+}
\ No newline at end of file