diff --git a/crates/shadowsocks-service/src/config.rs b/crates/shadowsocks-service/src/config.rs
index d44406477b76..747ce1f6a3c3 100644
--- a/crates/shadowsocks-service/src/config.rs
+++ b/crates/shadowsocks-service/src/config.rs
@@ -444,7 +444,7 @@ impl ConfigType {
         self == ConfigType::Manager
     }
 
-    /// Chec if it is online config type (SIP008)
+    /// Check if it is online config type (SIP008)
     #[cfg(feature = "local-online-config")]
     pub fn is_online_config(self) -> bool {
         self == ConfigType::OnlineConfig
@@ -3144,7 +3144,7 @@ pub fn read_variable_field_value(value: &str) -> Cow<'_, str> {
                 Ok(value) => return value.into(),
                 Err(err) => {
                     warn!(
-                        "couldn't read password from environemnt variable {}, error: {}",
+                        "couldn't read password from environment variable {}, error: {}",
                         var_name, err
                     );
                 }
diff --git a/crates/shadowsocks-service/src/local/redir/tcprelay/sys/unix/linux.rs b/crates/shadowsocks-service/src/local/redir/tcprelay/sys/unix/linux.rs
index 629f6b8b910d..f0d32c60086f 100644
--- a/crates/shadowsocks-service/src/local/redir/tcprelay/sys/unix/linux.rs
+++ b/crates/shadowsocks-service/src/local/redir/tcprelay/sys/unix/linux.rs
@@ -115,7 +115,7 @@ fn get_original_destination_addr(s: &TcpStream) -> io::Result<SocketAddr> {
 
     unsafe {
         let (_, target_addr) = SockAddr::try_init(|target_addr, target_addr_len| {
-            // No suffcient method to know whether the destination IPv4 or IPv6.
+            // No sufficient method to know whether the destination IPv4 or IPv6.
             // Follow the method in shadowsocks-libev.
 
             let ret = libc::getsockopt(
diff --git a/crates/shadowsocks-service/src/local/socks/server/socks5/tcprelay.rs b/crates/shadowsocks-service/src/local/socks/server/socks5/tcprelay.rs
index 77d03d790ab5..109968e4b430 100644
--- a/crates/shadowsocks-service/src/local/socks/server/socks5/tcprelay.rs
+++ b/crates/shadowsocks-service/src/local/socks/server/socks5/tcprelay.rs
@@ -124,7 +124,7 @@ impl Socks5TcpHandler {
 
                 return Err(Error::new(
                     ErrorKind::Other,
-                    "Username/Password Authentication Initial request uname contains invaid characters",
+                    "Username/Password Authentication Initial request uname contains invalid characters",
                 ));
             }
         };
@@ -137,7 +137,7 @@ impl Socks5TcpHandler {
 
                 return Err(Error::new(
                     ErrorKind::Other,
-                    "Username/Password Authentication Initial request passwd contains invaid characters",
+                    "Username/Password Authentication Initial request passwd contains invalid characters",
                 ));
             }
         };