diff --git a/src/styles/components/tooltip.less b/src/styles/components/tooltip.less
index 35501df2..d42e54fa 100644
--- a/src/styles/components/tooltip.less
+++ b/src/styles/components/tooltip.less
@@ -76,6 +76,9 @@
         &-with-width{
             white-space: pre-wrap;
             text-align: justify;
+            // 解决纯字母或数字不换行的问题
+            word-wrap: break-word;
+            word-break: break-all;
         }
     }
 
@@ -107,4 +110,4 @@
             border-width: @tooltip-arrow-outer-width-light;
         }
     }
-}
\ No newline at end of file
+}