diff --git a/README.md b/README.md
index 206e45a..b6c8eff 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,5 @@
 # RustWeightService
 
-rust称重到mqtt
\ No newline at end of file
+rust称重到mqtt
+麒麟      "serial_port": "/dev/ttyS1",
+windows       "serial_port": "com1",
\ No newline at end of file
diff --git a/config.json b/config.json
index b2062e3..8bfb611 100644
--- a/config.json
+++ b/config.json
@@ -1,5 +1,5 @@
 {
     "scale_type": "001",
-    "serial_port": "COM1",
+    "serial_port": "/dev/ttyS1",
     "baud_rate": 9600
 }