diff --git a/src/config.rs b/src/config.rs
index 27bef63..a697715 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -149,6 +149,9 @@ pub fn read_config(conf: String) -> Vec<NatCell> {
 
     let strs = contents.split('\n');
     for str in strs {
+        if str.starts_with('#'){
+            continue;
+        }
         let cells = str.trim().split(',').collect::<Vec<&str>>();
         if cells.len() == 4 || cells.len() == 5 {
             let mut protocal: Protocol = Protocol::All;
@@ -177,4 +180,4 @@ pub fn read_config(conf: String) -> Vec<NatCell> {
         }
     }
     nat_cells
-}
\ No newline at end of file
+}