diff --git a/src/mapboxgl/web-map/WebMapV2.ts b/src/mapboxgl/web-map/WebMapV2.ts
index bc39871f..fa0fc316 100644
--- a/src/mapboxgl/web-map/WebMapV2.ts
+++ b/src/mapboxgl/web-map/WebMapV2.ts
@@ -1566,6 +1566,9 @@ export default class WebMap extends WebMapBase {
     for (const key in expressionMap) {
       if (Object.prototype.hasOwnProperty.call(expressionMap, key)) {
         const expression = expressionMap[key];
+        if (!Array.isArray(expression)) {
+          continue;
+        }
         const defaultStyleItem = defultLayerStyle[key] || defaultValueFactory[key];
         const styleItem = { [key]: defaultStyleItem };
         // 从customsetting里取了透明度和color一起处理了，layerinfo.style里的透明度就不需要了
diff --git a/src/mapboxgl/web-map/__tests__/WebMapViewModel.spec.js b/src/mapboxgl/web-map/__tests__/WebMapViewModel.spec.js
index 218f6801..025e6070 100644
--- a/src/mapboxgl/web-map/__tests__/WebMapViewModel.spec.js
+++ b/src/mapboxgl/web-map/__tests__/WebMapViewModel.spec.js
@@ -308,7 +308,7 @@ describe('WebMapViewModel.spec', () => {
         expect(item.renderLayers.length).toBeGreaterThanOrEqual(1);
       })
       expect(viewModel.map.getStyle().layers.find((item)=>{return item.type === 'fill'}).paint['fill-opacity']).toBe(1);
-      expect(viewModel.map.getStyle().layers.find((item)=>{return item.type === 'fill'}).paint['fill-color'][3]).toBe('rgba(213, 62, 79, 0.9)');
+      expect(viewModel.map.getStyle().layers.find((item)=>{return item.type === 'fill'}).paint['fill-color'][3]).toBe('rgba(230, 245, 153, 0.7)');
       done();
     };
     viewModel.on({ addlayerssucceeded: callback });
diff --git a/test/unit/mocks/data/WebMap/uniqueLayer_polygon.json b/test/unit/mocks/data/WebMap/uniqueLayer_polygon.json
index fdafd574..e080098a 100644
--- a/test/unit/mocks/data/WebMap/uniqueLayer_polygon.json
+++ b/test/unit/mocks/data/WebMap/uniqueLayer_polygon.json
@@ -15,12 +15,12 @@
       "layerType": "UNIQUE",
       "visible": true,
       "themeSetting": {
-        "themeField": "行政区划_c",
+        "themeField": "机场",
         "customSettings": {
-          "四川省": {
+          "北京/首都": {
             "strokeWidth": 1,
             "fillColor": "#e6f599",
-            "fillOpacity": 0.9,
+            "fillOpacity": 0.7,
             "lineDash": "solid",
             "strokeColor": "#ffffff",
             "type": "POLYGON",