diff --git a/src/vender/puread/puplugin.min.js b/src/vender/puread/puplugin.min.js
index b31e5f65..1dd28665 100644
--- a/src/vender/puread/puplugin.min.js
+++ b/src/vender/puread/puplugin.min.js
@@ -1893,7 +1893,7 @@
 	            sina = $target.attr("real_src"),
 	            fixOverflowImgsize = function fixOverflowImgsize() {
 	            $img.removeClass("sr-rd-content-img-load");
-	            if ($img[0].clientWidth < 400) {
+	            if ($img[0].clientWidth < 300 && $img[0].clientHeight < 300) {
 	                $img.parent().removeClass("sr-rd-content-center").addClass("sr-rd-content-center-small");
 	            } else if ($img[0].clientWidth > 1000) {
 	                $img.css("zoom", "0.6");