diff --git a/vn.trader/VT_setting.json b/vn.trader/VT_setting.json
index 776c8d36..c9bdcc0b 100644
--- a/vn.trader/VT_setting.json
+++ b/vn.trader/VT_setting.json
@@ -7,5 +7,5 @@
 	"mongoLogging": true,
 
 	"darkStyle": true,
-	"language": "english"
+	"language": "chinese"
 }
\ No newline at end of file
diff --git a/vn.trader/ctaStrategy/language/Chinese/__init__.py b/vn.trader/ctaStrategy/language/chinese/__init__.py
similarity index 100%
rename from vn.trader/ctaStrategy/language/Chinese/__init__.py
rename to vn.trader/ctaStrategy/language/chinese/__init__.py
diff --git a/vn.trader/ctaStrategy/language/Chinese/text.py b/vn.trader/ctaStrategy/language/chinese/text.py
similarity index 100%
rename from vn.trader/ctaStrategy/language/Chinese/text.py
rename to vn.trader/ctaStrategy/language/chinese/text.py
diff --git a/vn.trader/ctaStrategy/language/English/__init__.py b/vn.trader/ctaStrategy/language/english/__init__.py
similarity index 100%
rename from vn.trader/ctaStrategy/language/English/__init__.py
rename to vn.trader/ctaStrategy/language/english/__init__.py
diff --git a/vn.trader/ctaStrategy/language/English/text.py b/vn.trader/ctaStrategy/language/english/text.py
similarity index 100%
rename from vn.trader/ctaStrategy/language/English/text.py
rename to vn.trader/ctaStrategy/language/english/text.py
diff --git a/vn.trader/dataRecorder/language/Chinese/__init__.py b/vn.trader/dataRecorder/language/chinese/__init__.py
similarity index 100%
rename from vn.trader/dataRecorder/language/Chinese/__init__.py
rename to vn.trader/dataRecorder/language/chinese/__init__.py
diff --git a/vn.trader/dataRecorder/language/Chinese/text.py b/vn.trader/dataRecorder/language/chinese/text.py
similarity index 100%
rename from vn.trader/dataRecorder/language/Chinese/text.py
rename to vn.trader/dataRecorder/language/chinese/text.py
diff --git a/vn.trader/dataRecorder/language/English/__init__.py b/vn.trader/dataRecorder/language/english/__init__.py
similarity index 100%
rename from vn.trader/dataRecorder/language/English/__init__.py
rename to vn.trader/dataRecorder/language/english/__init__.py
diff --git a/vn.trader/dataRecorder/language/English/text.py b/vn.trader/dataRecorder/language/english/text.py
similarity index 100%
rename from vn.trader/dataRecorder/language/English/text.py
rename to vn.trader/dataRecorder/language/english/text.py
diff --git a/vn.trader/gateway/ctpGateway/language/Chinese/__init__.py b/vn.trader/gateway/ctpGateway/language/chinese/__init__.py
similarity index 100%
rename from vn.trader/gateway/ctpGateway/language/Chinese/__init__.py
rename to vn.trader/gateway/ctpGateway/language/chinese/__init__.py
diff --git a/vn.trader/gateway/ctpGateway/language/Chinese/text.py b/vn.trader/gateway/ctpGateway/language/chinese/text.py
similarity index 100%
rename from vn.trader/gateway/ctpGateway/language/Chinese/text.py
rename to vn.trader/gateway/ctpGateway/language/chinese/text.py
diff --git a/vn.trader/gateway/ctpGateway/language/English/__init__.py b/vn.trader/gateway/ctpGateway/language/english/__init__.py
similarity index 100%
rename from vn.trader/gateway/ctpGateway/language/English/__init__.py
rename to vn.trader/gateway/ctpGateway/language/english/__init__.py
diff --git a/vn.trader/gateway/ctpGateway/language/English/text.py b/vn.trader/gateway/ctpGateway/language/english/text.py
similarity index 100%
rename from vn.trader/gateway/ctpGateway/language/English/text.py
rename to vn.trader/gateway/ctpGateway/language/english/text.py
diff --git a/vn.trader/gateway/ibGateway/language/Chinese/__init__.py b/vn.trader/gateway/ibGateway/language/chinese/__init__.py
similarity index 100%
rename from vn.trader/gateway/ibGateway/language/Chinese/__init__.py
rename to vn.trader/gateway/ibGateway/language/chinese/__init__.py
diff --git a/vn.trader/gateway/ibGateway/language/Chinese/text.py b/vn.trader/gateway/ibGateway/language/chinese/text.py
similarity index 100%
rename from vn.trader/gateway/ibGateway/language/Chinese/text.py
rename to vn.trader/gateway/ibGateway/language/chinese/text.py
diff --git a/vn.trader/gateway/ibGateway/language/English/__init__.py b/vn.trader/gateway/ibGateway/language/english/__init__.py
similarity index 100%
rename from vn.trader/gateway/ibGateway/language/English/__init__.py
rename to vn.trader/gateway/ibGateway/language/english/__init__.py
diff --git a/vn.trader/gateway/ibGateway/language/English/text.py b/vn.trader/gateway/ibGateway/language/english/text.py
similarity index 100%
rename from vn.trader/gateway/ibGateway/language/English/text.py
rename to vn.trader/gateway/ibGateway/language/english/text.py
diff --git a/vn.trader/riskManager/language/Chinese/__init__.py b/vn.trader/riskManager/language/chinese/__init__.py
similarity index 100%
rename from vn.trader/riskManager/language/Chinese/__init__.py
rename to vn.trader/riskManager/language/chinese/__init__.py
diff --git a/vn.trader/riskManager/language/Chinese/text.py b/vn.trader/riskManager/language/chinese/text.py
similarity index 100%
rename from vn.trader/riskManager/language/Chinese/text.py
rename to vn.trader/riskManager/language/chinese/text.py
diff --git a/vn.trader/riskManager/language/English/__init__.py b/vn.trader/riskManager/language/english/__init__.py
similarity index 100%
rename from vn.trader/riskManager/language/English/__init__.py
rename to vn.trader/riskManager/language/english/__init__.py
diff --git a/vn.trader/riskManager/language/English/text.py b/vn.trader/riskManager/language/english/text.py
similarity index 100%
rename from vn.trader/riskManager/language/English/text.py
rename to vn.trader/riskManager/language/english/text.py