diff --git a/core/src/main/java/com/taobao/arthas/core/util/StringUtils.java b/core/src/main/java/com/taobao/arthas/core/util/StringUtils.java
index 9070e66e4..320f67eed 100644
--- a/core/src/main/java/com/taobao/arthas/core/util/StringUtils.java
+++ b/core/src/main/java/com/taobao/arthas/core/util/StringUtils.java
@@ -36,7 +36,7 @@ public abstract class StringUtils {
         try {
             return obj.toString();
         } catch (Throwable t) {
-            return "ERROR DATA!!!";
+            return "ERROR DATA!!! Method toString() throw exception. obj class: " + obj.getClass() + ", exception message: " + t.getMessage();
         }
     }
 
diff --git a/core/src/main/java/com/taobao/arthas/core/view/ObjectView.java b/core/src/main/java/com/taobao/arthas/core/view/ObjectView.java
index 5b8e1caba..67dd70984 100644
--- a/core/src/main/java/com/taobao/arthas/core/view/ObjectView.java
+++ b/core/src/main/java/com/taobao/arthas/core/view/ObjectView.java
@@ -50,7 +50,7 @@ public class ObjectView implements View {
                     .append(", try to specify -M size_limit in your command, check the help command for more.");
             return buf.toString();
         } catch (Throwable t) {
-            return "ERROR DATA!!!";
+            return "ERROR DATA!!! exception message: " + t.getMessage();
         }
     }