diff --git a/app/modules/filemanager/transhandler.py b/app/modules/filemanager/transhandler.py
index d15d21fb..db67bf71 100644
--- a/app/modules/filemanager/transhandler.py
+++ b/app/modules/filemanager/transhandler.py
@@ -497,18 +497,23 @@ class TransHandler:
         重命名字幕文件，补充附加信息
         """
         # 字幕正则式
-        _zhcn_sub_re = r"([.\[(](((zh[-_])?(cn|ch[si]|sg|sc))|zho?" \
-                       r"|chinese|(cn|ch[si]|sg|zho?|eng)[-_&]?(cn|ch[si]|sg|zho?|eng)" \
-                       r"|简[体中]?)[.\])])" \
+        _zhcn_sub_re = r"([.\[(\s](((zh[-_])?(cn|ch[si]|sg|sc))|zho?" \
+                       r"|chinese|(cn|ch[si]|sg|zho?)[-_&]?(cn|ch[si]|sg|zho?|eng|jap|ja|jpn)" \
+                       r"|eng[-_&]?(cn|ch[si]|sg|zho?)|(jap|ja|jpn)[-_&]?(cn|ch[si]|sg|zho?)" \
+                       r"|简[体中]?)[.\])\s])" \
                        r"|([\u4e00-\u9fa5]{0,3}[中双][\u4e00-\u9fa5]{0,2}[字文语][\u4e00-\u9fa5]{0,3})" \
                        r"|简体|简中|JPSC|sc_jp" \
                        r"|(?<![a-z0-9])gb(?![a-z0-9])"
-        _zhtw_sub_re = r"([.\[(](((zh[-_])?(hk|tw|cht|tc))" \
-                       r"|(cht|eng)[-_&]?(cht|eng)" \
-                       r"|繁[体中]?)[.\])])" \
+        _zhtw_sub_re = r"([.\[(\s](((zh[-_])?(hk|tw|cht|tc))" \
+                       r"|cht[-_&]?(cht|eng|jap|ja|jpn)" \
+                       r"|eng[-_&]?cht|(jap|ja|jpn)[-_&]?cht" \
+                       r"|繁[体中]?)[.\])\s])" \
                        r"|繁体中[文字]|中[文字]繁体|繁体|JPTC|tc_jp" \
                        r"|(?<![a-z0-9])big5(?![a-z0-9])"
-        _eng_sub_re = r"[.\[(]eng[.\])]"
+        _ja_sub_re = r"([.\[(\s](ja-jp|jap|ja|jpn" \
+                     r"|(jap|ja|jpn)[-_&]?eng|eng[-_&]?(jap|ja|jpn))[.\])\s])" \
+                     r"|日本語|日語"
+        _eng_sub_re = r"[.\[(\s]eng[.\])\s]"
 
         # 原文件后缀
         file_ext = f".{sub_item.extension}"
@@ -520,12 +525,15 @@ class TransHandler:
             new_file_type = ".chi.zh-cn"
         elif re.search(_zhtw_sub_re, sub_item.name, re.I):
             new_file_type = ".zh-tw"
+        elif re.search(_ja_sub_re, sub_item.name, re.I):
+            new_file_type = ".ja"
         elif re.search(_eng_sub_re, sub_item.name, re.I):
             new_file_type = ".eng"
 
         # 添加默认字幕标识
         if ((settings.DEFAULT_SUB == "zh-cn" and new_file_type == ".chi.zh-cn")
                 or (settings.DEFAULT_SUB == "zh-tw" and new_file_type == ".zh-tw")
+                or (settings.DEFAULT_SUB == "ja" and new_file_type == ".ja")
                 or (settings.DEFAULT_SUB == "eng" and new_file_type == ".eng")):
             new_sub_tag = ".default" + new_file_type
         else: