diff --git a/src/dplatformhandle.cpp b/src/dplatformhandle.cpp
index a582a48e..83eec326 100644
--- a/src/dplatformhandle.cpp
+++ b/src/dplatformhandle.cpp
@@ -549,10 +549,7 @@ static void initWindowRadius(QWindow *window)
         return;
 
     auto theme = DGuiApplicationHelper::instance()->windowTheme(window);
-    int radius = theme->windowRadius();
-
-    if (radius == -1)
-        radius =theme->windowRadius(18); //###(zccrs): 暂时在此处给窗口默认设置为18px的圆角
+    int radius = theme->windowRadius(18); //###(zccrs): 暂时在此处给窗口默认设置为18px的圆角
 
     setWindowProperty(window, _windowRadius, radius);
     window->connect(theme, &DPlatformTheme::windowRadiusChanged, window, [=] (int radius) {
diff --git a/src/dplatformtheme.cpp b/src/dplatformtheme.cpp
index e2da4773..870949f4 100644
--- a/src/dplatformtheme.cpp
+++ b/src/dplatformtheme.cpp
@@ -391,8 +391,15 @@ int DPlatformTheme::windowRadius() const
 
 int DPlatformTheme::windowRadius(int defaultValue) const
 {
+    Q_D(const DPlatformTheme);
+
+    QVariant value = d->theme->getSetting(QByteArrayLiteral("DTK/WindowRadius"));
     bool ok = false;
-    int radius = this->property("windowRadius").toInt(&ok);
+
+    if (d->fallbackProperty && !value.isValid() && d->parent)
+        return d->parent->windowRadius(defaultValue);
+
+    int radius = value.toInt(&ok);
 
     return ok ? radius : defaultValue;
 }