diff --git a/src/Obj/Base/TextBox/index.js b/src/Obj/Base/TextBox/index.js
index 0179243..8a974d9 100644
--- a/src/Obj/Base/TextBox/index.js
+++ b/src/Obj/Base/TextBox/index.js
@@ -54,7 +54,6 @@ class TextBox extends Base {
     // 配置CSS样式和内容结构
     viewer.cesiumWidget.container.appendChild(dom);
     let posi = Cesium.Cartesian3.fromDegrees(that.options.position.lng.toFixed(4), that.options.position.lat.toFixed(4), that.options.position.alt.toFixed(4))
-
     that.handler = function () {
       const position = Cesium.SceneTransforms.wgs84ToWindowCoordinates(
         viewer.scene, posi
@@ -80,12 +79,15 @@ class TextBox extends Base {
       var cartographic = Cesium.Cartographic.fromCartesian(cartesian);
       var longitude = Cesium.Math.toDegrees(cartographic.longitude);
       var latitude = Cesium.Math.toDegrees(cartographic.latitude);
+
+      let height = await that.getClampToHeight({ lng: longitude, lat: latitude })
       that.position = {
         lng: longitude,
         lat: latitude,
-        alt: cartographic.height
+        // alt: cartographic.height
+        alt: height
       }
-      let posi = Cesium.Cartesian3.fromDegrees(longitude.toFixed(4), latitude.toFixed(4), cartographic.height.toFixed(4))
+      let posi = Cesium.Cartesian3.fromDegrees(longitude.toFixed(4), latitude.toFixed(4), height.toFixed(4))
 
       that.handler = function () {
         const position = Cesium.SceneTransforms.wgs84ToWindowCoordinates(