diff --git a/src/miniprogram/index.js b/src/miniprogram/index.js
index cf09896..3afe7de 100644
--- a/src/miniprogram/index.js
+++ b/src/miniprogram/index.js
@@ -78,11 +78,11 @@ Component({
 
     /**
      * @description 是否允许图片被点击时自动预览
-     * @type {Boolean}
+     * @type {Boolean | String}
      * @default true
      */
     previewImg: {
-      type: Boolean,
+      type: null,
       value: true
     },
 
diff --git a/src/miniprogram/parser.js b/src/miniprogram/parser.js
index 9bd5d38..ba2a999 100644
--- a/src/miniprogram/parser.js
+++ b/src/miniprogram/parser.js
@@ -421,7 +421,7 @@ Parser.prototype.onOpenTag = function (selfClose) {
           node.webp = 'T'
         }
         // data url 图片如果没有设置 original-src 默认为不可预览的小图片
-        if (attrs.src.includes('data:') && !attrs['original-src']) {
+        if (attrs.src.includes('data:') && this.options.previewImg !== 'all' && !attrs['original-src']) {
           attrs.ignore = 'T'
         }
         if (!attrs.ignore || node.webp || attrs.src.includes('cloud://')) {
diff --git a/src/uni-app/components/mp-html/parser.js b/src/uni-app/components/mp-html/parser.js
index 3e3f54b..fca436a 100644
--- a/src/uni-app/components/mp-html/parser.js
+++ b/src/uni-app/components/mp-html/parser.js
@@ -459,7 +459,7 @@ Parser.prototype.onOpenTag = function (selfClose) {
           node.webp = 'T'
         }
         // data url 图片如果没有设置 original-src 默认为不可预览的小图片
-        if (attrs.src.includes('data:') && !attrs['original-src']) {
+        if (attrs.src.includes('data:') && this.options.previewImg !== 'all' && !attrs['original-src']) {
           attrs.ignore = 'T'
         }
         if (!attrs.ignore || node.webp || attrs.src.includes('cloud://')) {