diff --git a/app/common/tools/Image.php b/app/common/tools/Image.php
index f3dafc6..280c9af 100644
--- a/app/common/tools/Image.php
+++ b/app/common/tools/Image.php
@@ -50,6 +50,11 @@ class Image
 
     public static function handelWatermarkSave($src, $watermarked_file_save_name = null)
     {
+        // 判断src是否是base64
+        if (strpos($src, 'data:image') === 0) {
+            $src = static::base64ToImage($src);
+        }
+
         $src_file = new SplFileInfo($src);
         $watermark_text = get_system_config('watermark_text', 'phpreturn.com');
 
@@ -60,7 +65,9 @@ class Image
         }
 
         // 如果以jpe结尾，转换为jpg
-        $watermarked_file_save_name = str_replace('.jpe', '.jpg', $watermarked_file_save_name);
+        if (str_ends_with($watermarked_file_save_name, '.jpe')) {
+            $watermarked_file_save_name = str_replace('.jpe', '.jpg', $watermarked_file_save_name);
+        }
 
         $watermarked_file = App::getRootPath() . '/public' . $watermarked_file_save_name;
 
@@ -83,4 +90,38 @@ class Image
 
         return $watermarked_file_save_name;
     }
+
+    public static function base64ToImage($base64)
+    {
+        $ext_name = 'jpg';
+
+        if (strpos($base64, 'data:image/jpeg;base64,') === 0) {
+            $ext_name = 'jpg';
+        } elseif (strpos($base64, 'data:image/jpg;base64,') === 0) {
+            $ext_name = 'jpg';
+        } elseif (strpos($base64, 'data:image/png;base64,') === 0) {
+            $ext_name = 'png';
+        } elseif (strpos($base64, 'data:image/gif;base64,') === 0) {
+            $ext_name = 'gif';
+        }
+
+        $base64 = str_replace('data:image/jpeg;base64,', '', $base64);
+        $base64 = str_replace('data:image/jpg;base64,', '', $base64);
+        $base64 = str_replace('data:image/png;base64,', '', $base64);
+        $base64 = str_replace('data:image/gif;base64,', '', $base64);
+        $base64 = str_replace(' ', '+', $base64);
+
+        $image = base64_decode($base64);
+
+        $file_name = '/upload/base64/' . md5($base64) . '.' . $ext_name;
+        $file_path = App::getRootPath() . '/public' . $file_name;
+
+        if (!is_dir(dirname($file_path))) {
+            mkdir(dirname($file_path), 0777, true);
+        }
+
+        file_put_contents($file_path, $image);
+
+        return $file_path;
+    }
 }
diff --git a/app/common/tools/PostShow.php b/app/common/tools/PostShow.php
index c7dbc23..cceb63a 100644
--- a/app/common/tools/PostShow.php
+++ b/app/common/tools/PostShow.php
@@ -50,7 +50,9 @@ class PostShow
 
             $src = $dom_img->attr('src');
 
-            $src = get_source_link($src);
+            if (strpos($src, 'data:image') !== 0) {
+                $src = get_source_link($src);
+            }
 
             $watermarked_file_save_name = Image::handelWatermarkSave($src);