diff --git a/app/src/main/java/com/duolebo/blyrobot/tools/OcrManager.kt b/app/src/main/java/com/duolebo/blyrobot/tools/OcrManager.kt
index db5b01f9dde4043445898d7e86f714687aebb6da..670bfd0522114454c25d621c3c72455af35bcc4f 100644
--- a/app/src/main/java/com/duolebo/blyrobot/tools/OcrManager.kt
+++ b/app/src/main/java/com/duolebo/blyrobot/tools/OcrManager.kt
@@ -96,6 +96,11 @@ class OcrManager {
             }
         }
 
+        // 长度小于8的直接丢弃
+        if (words.length < 7) {
+            words = ""
+        }
+
        return words
     }