diff --git a/designer-base/src/main/java/com/fr/file/StashedFILE.java b/designer-base/src/main/java/com/fr/file/StashedFILE.java
index 181af28601..454433874e 100644
--- a/designer-base/src/main/java/com/fr/file/StashedFILE.java
+++ b/designer-base/src/main/java/com/fr/file/StashedFILE.java
@@ -71,4 +71,9 @@ public class StashedFILE extends AbstractFILE {
     public boolean isEnvFile() {
         return false;
     }
+
+    @Override
+    public String toString() {
+        return FILEFactory.MEM_PREFIX + getName();
+    }
 }
diff --git a/designer-base/src/test/java/com/fr/file/StashedFILETest.java b/designer-base/src/test/java/com/fr/file/StashedFILETest.java
new file mode 100644
index 0000000000..f3c358574b
--- /dev/null
+++ b/designer-base/src/test/java/com/fr/file/StashedFILETest.java
@@ -0,0 +1,23 @@
+package com.fr.file;
+
+import org.easymock.EasyMock;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class StashedFILETest {
+
+    /**
+     * 用于测试暂存文件未保存时的提示
+     */
+    @Test
+    public void testToString() {
+        FILE file = EasyMock.mock(FILE.class);
+        String name = "getA.cpt";
+        EasyMock.expect(file.getName()).andReturn(name).once();
+        EasyMock.replay(file);
+        FILE stashedFILE = new StashedFILE(file, new byte[0]);
+        String expectString = FILEFactory.MEM_PREFIX + name;
+        Assert.assertEquals(expectString, stashedFILE + "");
+        EasyMock.verify(file);
+    }
+}