diff --git a/Cargo.lock b/Cargo.lock
index c7c3f55..f24f96e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -11,6 +11,46 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "anstream"
+version = "0.2.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "342258dd14006105c2b75ab1bd7543a03bdf0cfc94383303ac212a04939dff6f"
+dependencies = [
+ "anstyle",
+ "anstyle-parse",
+ "anstyle-wincon",
+ "concolor-override",
+ "concolor-query",
+ "is-terminal",
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "23ea9e81bd02e310c216d080f6223c179012256e5151c41db88d12c88a1684d2"
+
+[[package]]
+name = "anstyle-parse"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a7d1bb534e9efed14f3e5f44e7dd1a4f709384023a4165199a4241e18dff0116"
+dependencies = [
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle-wincon"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c3127af6145b149f3287bb9a0d10ad9c5692dba8c53ad48285e5bec4063834fa"
+dependencies = [
+ "anstyle",
+ "windows-sys 0.45.0",
+]
+
 [[package]]
 name = "autocfg"
 version = "1.1.0"
@@ -41,6 +81,63 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
+[[package]]
+name = "clap"
+version = "4.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "046ae530c528f252094e4a77886ee1374437744b2bff1497aa898bbddbbb29b3"
+dependencies = [
+ "clap_builder",
+ "clap_derive",
+ "once_cell",
+]
+
+[[package]]
+name = "clap_builder"
+version = "4.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "223163f58c9a40c3b0a43e1c4b50a9ce09f007ea2cb1ec258a687945b4b7929f"
+dependencies = [
+ "anstream",
+ "anstyle",
+ "bitflags",
+ "clap_lex",
+ "strsim",
+]
+
+[[package]]
+name = "clap_derive"
+version = "4.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f9644cd56d6b87dbe899ef8b053e331c0637664e9e21a33dfcdc36093f5c5c4"
+dependencies = [
+ "heck",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "clap_lex"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8a2dd5a6fe8c6e3502f568a6353e5273bbb15193ad9a89e457b9970798efbea1"
+
+[[package]]
+name = "concolor-override"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a855d4a1978dc52fb0536a04d384c2c0c1aa273597f08b77c8c4d3b2eec6037f"
+
+[[package]]
+name = "concolor-query"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "88d11d52c3d7ca2e6d0040212be9e4dbbcd78b6447f535b6b561f449427944cf"
+dependencies = [
+ "windows-sys 0.45.0",
+]
+
 [[package]]
 name = "env_logger"
 version = "0.10.0"
@@ -75,6 +172,12 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "heck"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
+
 [[package]]
 name = "hermit-abi"
 version = "0.2.6"
@@ -184,6 +287,12 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "once_cell"
+version = "1.17.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b7e5500299e16ebb147ae15a00a942af264cf3688f47923b8fc2cd5858f23ad3"
+
 [[package]]
 name = "parking_lot"
 version = "0.12.1"
@@ -261,6 +370,7 @@ checksum = "f162c6dd7b008981e4d40210aca20b4bd0f9b60ca9271061b07f78537722f2e1"
 name = "rua-list"
 version = "0.1.0"
 dependencies = [
+ "clap",
  "env_logger",
  "log",
  "serde",
@@ -350,6 +460,12 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "strsim"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
+
 [[package]]
 name = "syn"
 version = "2.0.14"
@@ -406,6 +522,12 @@ version = "1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e5464a87b239f13a63a501f2701565754bae92d243d4bb7eb12f6d57d2269bf4"
 
+[[package]]
+name = "utf8parse"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "711b9620af191e0cdc7468a8d14e709c3dcdb115b36f838e601583af800a370a"
+
 [[package]]
 name = "wasi"
 version = "0.11.0+wasi-snapshot-preview1"
diff --git a/Cargo.toml b/Cargo.toml
index d93255d..01ab1e1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,3 +11,4 @@ log = "0.4.17"
 tokio = { version = "1.27.0", features = ["full"] }
 serde = { version = "1.0.160", features = ["derive"] }
 serde_json = "1.0.96"
+clap = { version = "4.2.1", features = ["derive"] }
diff --git a/src/arg.rs b/src/arg.rs
index e69de29..9ded721 100644
--- a/src/arg.rs
+++ b/src/arg.rs
@@ -0,0 +1,12 @@
+use std::path::PathBuf;
+
+use clap::Parser;
+
+/// A tiny whilelist forward program.
+#[derive(Parser, Debug)]
+#[command(author, version, about, long_about = None)]
+pub struct Args {
+    /// Set config file location, default is current folder.
+    #[arg(short, long, value_name = "FILE")]
+    pub config: Option<PathBuf>,
+}
\ No newline at end of file
diff --git a/src/config.rs b/src/config.rs
index 88a398f..00b9db4 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -1,6 +1,9 @@
+use clap::Parser;
 use serde::{Deserialize, Serialize};
 use std::{fs, path::PathBuf};
 
+use crate::arg::Args;
+
 #[derive(Serialize, Deserialize, Debug)]
 pub struct List {
     exact: Vec<String>,
@@ -17,7 +20,13 @@ pub struct Config {
 
 impl Config {
     pub fn build() -> Self {
-        let config_path = PathBuf::from("./config.json");
+        let args = Args::parse();
+
+        let config_path = if let Some(path) = args.config {
+            path
+        } else {
+            PathBuf::from("./config.json")
+        };
         let config = fs::read_to_string(config_path).expect("Failed to read config file");
         let mut config: Config = serde_json::from_str(&config).expect("Config file format error");
 
diff --git a/src/main.rs b/src/main.rs
index 1a7f28e..9c47349 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,5 +1,6 @@
 use crate::config::Config;
 
+mod arg;
 mod config;
 mod logger;