diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index 5fc08c92e99..993e5c2d46d 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -4154,6 +4154,16 @@
     githubId = 3425311;
     name = "Antoine Eiche";
   };
+  lexuge = {
+    name = "Harry Ying";
+    email = "lexugeyky@outlook.com";
+    github = "LEXUGE";
+    githubId = 13804737;
+    keys = [{
+      longkeyid = "rsa4096/0xAE53B4C2E58EDD45";
+      fingerprint = "7FE2 113A A08B 695A C8B8  DDE6 AE53 B4C2 E58E DD45";
+    }];
+  };
   lheckemann = {
     email = "git@sphalerite.org";
     github = "lheckemann";
diff --git a/nixos/modules/module-list.nix b/nixos/modules/module-list.nix
index 771d7e128ea..d7bc02cbdc1 100644
--- a/nixos/modules/module-list.nix
+++ b/nixos/modules/module-list.nix
@@ -709,6 +709,7 @@
   ./services/networking/shorewall6.nix
   ./services/networking/shout.nix
   ./services/networking/sniproxy.nix
+  ./services/networking/smartdns.nix
   ./services/networking/smokeping.nix
   ./services/networking/softether.nix
   ./services/networking/spacecookie.nix
diff --git a/nixos/modules/services/networking/smartdns.nix b/nixos/modules/services/networking/smartdns.nix
new file mode 100644
index 00000000000..f1888af7041
--- /dev/null
+++ b/nixos/modules/services/networking/smartdns.nix
@@ -0,0 +1,61 @@
+{ lib, pkgs, config, ... }:
+
+with lib;
+
+let
+  inherit (lib.types) attrsOf coercedTo listOf oneOf str int bool;
+  cfg = config.services.smartdns;
+
+  confFile = pkgs.writeText "smartdns.conf" (with generators;
+    toKeyValue {
+      mkKeyValue = mkKeyValueDefault {
+        mkValueString = v:
+          if isBool v then
+            if v then "yes" else "no"
+          else
+            mkValueStringDefault { } v;
+      } " ";
+      listsAsDuplicateKeys =
+        true; # Allowing duplications because we need to deal with multiple entries with the same key.
+    } cfg.settings);
+in {
+  options.services.smartdns = {
+    enable = mkEnableOption "SmartDNS DNS server";
+
+    bindPort = mkOption {
+      type = types.port;
+      default = 53;
+      description = "DNS listening port number.";
+    };
+
+    settings = mkOption {
+      type =
+      let atom = oneOf [ str int bool ];
+      in attrsOf (coercedTo atom toList (listOf atom));
+      example = literalExample ''
+        {
+          bind = ":5353 -no-rule -group example";
+          cache-size = 4096;
+          server-tls = [ "8.8.8.8:853" "1.1.1.1:853" ];
+          server-https = "https://cloudflare-dns.com/dns-query -exclude-default-group";
+          prefetch-domain = true;
+          speed-check-mode = "ping,tcp:80";
+        };
+      '';
+      description = ''
+        A set that will be generated into configuration file, see the <link xlink:href="https://github.com/pymumu/smartdns/blob/master/ReadMe_en.md#configuration-parameter">SmartDNS README</link> for details of configuration parameters.
+        You could override the options here like <option>services.smartdns.bindPort</option> by writing <literal>settings.bind = ":5353 -no-rule -group example";</literal>.
+      '';
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    services.smartdns.settings.bind = mkDefault ":${toString cfg.bindPort}";
+
+    systemd.packages = [ pkgs.smartdns ];
+    systemd.services.smartdns.wantedBy = [ "multi-user.target" ];
+    environment.etc."smartdns/smartdns.conf".source = confFile;
+    environment.etc."default/smartdns".source =
+      "${pkgs.smartdns}/etc/default/smartdns";
+  };
+}
diff --git a/pkgs/tools/networking/smartdns/default.nix b/pkgs/tools/networking/smartdns/default.nix
new file mode 100644
index 00000000000..62a9aaf216c
--- /dev/null
+++ b/pkgs/tools/networking/smartdns/default.nix
@@ -0,0 +1,38 @@
+{ stdenv, fetchFromGitHub, openssl }:
+
+stdenv.mkDerivation rec {
+  pname = "smartdns";
+  version =
+    "30"; # This would be used later in the next release as the FHS commit integrated into realse 31.
+
+  src = fetchFromGitHub {
+    owner = "pymumu";
+    repo = pname;
+    rev = "3ad7cd7f454eec2fbdf338c0eb0541da301f1e73";
+    sha256 = "1y9p8gxpj2k4a10maggkxg8l55jvr7x1wyxi69waxf56ggh2dvv0";
+  };
+
+  buildInputs = [ openssl ];
+
+  makeFlags = [
+    "PREFIX=${placeholder "out"}"
+    "SYSTEMDSYSTEMUNITDIR=${placeholder "out"}/lib/systemd/system"
+    "RUNSTATEDIR=/run"
+  ];
+
+  installFlags = [ "SYSCONFDIR=${placeholder "out"}/etc" ];
+
+  meta = with stdenv.lib; {
+    description =
+      "A local DNS server to obtain the fastest website IP for the best Internet experience";
+    longDescription = ''
+      SmartDNS is a local DNS server. SmartDNS accepts DNS query requests from local clients, obtains DNS query results from multiple upstream DNS servers, and returns the fastest access results to clients.
+      Avoiding DNS pollution and improving network access speed, supports high-performance ad filtering.
+      Unlike dnsmasq's all-servers, smartdns returns the fastest access resolution.
+    '';
+    homepage = "https://github.com/pymumu/smartdns";
+    maintainers = [ maintainers.lexuge ];
+    license = licenses.gpl3Plus;
+    platforms = platforms.linux;
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index e7f51e14b9b..79401516993 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -6540,6 +6540,8 @@ in
     conf = config.slstatus.conf or null;
   };
 
+  smartdns = callPackage ../tools/networking/smartdns { };
+
   smartmontools = callPackage ../tools/system/smartmontools {
     inherit (darwin.apple_sdk.frameworks) IOKit ApplicationServices;
   };