diff --git a/conf.sample.yml b/conf.sample.yml
index 9dabfc3..13cf780 100644
--- a/conf.sample.yml
+++ b/conf.sample.yml
@@ -50,7 +50,7 @@
 
 # LogLevel: 'info'              # default: info. can be debug|info|warn|error
 # Log:
-#   Outputs: 'stderr'           # default: stderr, split by |, you can append files to Outputs if need. example:'stderr|/tmp/test.log'
+#   Outputs: 'stderr'           # default: stderr, split by ",", you can append files to Outputs if need. example:'stderr,/tmp/test.log'
 #   RotationEnable: 0           # default: 0
 #   RotationConfigJson: '{}'    # example: '{"maxsize": 100, "maxage": 0, "maxbackups": 0, "localtime": false, "compress": false}'
 
diff --git a/dtmcli/logger/log.go b/dtmcli/logger/log.go
index 45048b1..dde58c1 100644
--- a/dtmcli/logger/log.go
+++ b/dtmcli/logger/log.go
@@ -49,7 +49,7 @@ func InitLog(level string) {
 
 // InitLog2 specify advanced log config
 func InitLog2(level string, outputs string, logRotationEnable int64, logRotateConfigJSON string) {
-	outputPaths := strings.Split(outputs, "|")
+	outputPaths := strings.Split(outputs, ",")
 	for i, v := range outputPaths {
 		if logRotationEnable != 0 && v != StdErr && v != StdOut {
 			outputPaths[i] = fmt.Sprintf("lumberjack://%s", v)
diff --git a/dtmcli/logger/logger_test.go b/dtmcli/logger/logger_test.go
index 49035c2..d55b6d6 100644
--- a/dtmcli/logger/logger_test.go
+++ b/dtmcli/logger/logger_test.go
@@ -17,12 +17,12 @@ func TestInitLog(t *testing.T) {
 	FatalfIf(false, "nothing")
 	FatalIfError(nil)
 
-	InitLog2("debug", "test.log|stderr", 0, "")
+	InitLog2("debug", "test.log,stderr", 0, "")
 	Debugf("a debug msg to console and file")
 
-	InitLog2("debug", "test2.log|/tmp/dtm-test1.log|/tmp/dtm-test.log|stdout|stderr", 1,
+	InitLog2("debug", "test2.log,/tmp/dtm-test1.log,/tmp/dtm-test.log,stdout,stderr", 1,
 		"{\"maxsize\": 1, \"maxage\": 1, \"maxbackups\": 1, \"compress\": false}")
-	Debugf("a debug msg to /tmp/dtm-test.log|test2.log|stdout|stderr")
+	Debugf("a debug msg to /tmp/dtm-test.log and test2.log and stdout and stderr")
 
 	// _ = os.Remove("test.log")
 }