diff --git a/modules/i3plus-core-apiservice/src/main/java/cn/estsh/i3plus/core/apiservice/util/MailUtil.java b/modules/i3plus-core-apiservice/src/main/java/cn/estsh/i3plus/core/apiservice/util/MailUtil.java
index f7df72d..5bd4b8d 100644
--- a/modules/i3plus-core-apiservice/src/main/java/cn/estsh/i3plus/core/apiservice/util/MailUtil.java
+++ b/modules/i3plus-core-apiservice/src/main/java/cn/estsh/i3plus/core/apiservice/util/MailUtil.java
@@ -218,7 +218,7 @@ public class MailUtil {
      * @param attachmentByte
      * @throws MessagingException
      */
-    public void addAttachment(String fileName, byte[] attachmentByte) throws MessagingException {
+    public void addAttachment(String fileName, byte[] attachmentByte) throws MessagingException, UnsupportedEncodingException {
         addAttachment(fileName, attachmentByte,
                 FileContentTypeTool.getContentType(StringTool.getStringFileSuffix(fileName, true)));
     }
@@ -231,11 +231,12 @@ public class MailUtil {
      * @param contentType
      * @throws MessagingException
      */
-    public void addAttachment(String fileName, byte[] attachmentByte, String contentType) throws MessagingException {
+    public void addAttachment(String fileName, byte[] attachmentByte, String contentType) throws MessagingException, UnsupportedEncodingException {
         BodyPart attachmentBodyPart = new MimeBodyPart();
         DataSource source = new ByteArrayDataSource(attachmentByte, contentType);
         attachmentBodyPart.setDataHandler(new DataHandler(source));
-        attachmentBodyPart.setFileName(fileName);
+        String name = MimeUtility.encodeText(fileName);
+        attachmentBodyPart.setFileName(name);
         attachmentList.add(attachmentBodyPart);
     }