diff --git a/Cargo.lock b/Cargo.lock
index 144d572..8d556da 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -406,6 +406,16 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3a822ea5bc7590f9d40f1ba12c0dc3c2760f3482c6984db1573ad11031420831"
 
+[[package]]
+name = "clap_mangen"
+version = "0.2.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "439ea63a92086df93893164221ad4f24142086d535b3a0957b9b9bea2dc86301"
+dependencies = [
+ "clap",
+ "roff",
+]
+
 [[package]]
 name = "colorchoice"
 version = "1.0.4"
@@ -1543,6 +1553,7 @@ dependencies = [
  "chrono",
  "clap",
  "clap_complete",
+ "clap_mangen",
  "console",
  "directories",
  "dockworker",
@@ -1760,6 +1771,12 @@ dependencies = [
  "syn 1.0.109",
 ]
 
+[[package]]
+name = "roff"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "88f8660c1ff60292143c98d08fc6e2f654d722db50410e3f3797d40baaf9d8f3"
+
 [[package]]
 name = "rust_decimal"
 version = "1.40.0"
diff --git a/Cargo.toml b/Cargo.toml
index 7e61552..e61010a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -38,6 +38,7 @@ anyhow        = "1.0"
 byte-unit     = "5.2"
 clap          = {version = "4.4", features = ["derive"]}
 clap_complete = "4.4"
+clap_mangen   = "0.2"
 console       = "0.16.2"
 chrono        = {version = "0.4.44", default-features = false, features = ["clock"]}
 directories   = "6.0.0"
@@ -57,6 +58,7 @@ unicode-width = "0.2"
 anyhow        = "1.0"
 clap          = {version = "4.4", features = ["derive"]}
 clap_complete = "4.4"
+clap_mangen   = "0.2"
 
 [target.'cfg(any(target_os = "linux", target_os = "android"))'.dependencies]
 pager         = "0.16.1"
diff --git a/build.rs b/build.rs
index 8496ad5..d6be255 100644
--- a/build.rs
+++ b/build.rs
@@ -12,4 +12,19 @@ fn main() {
         gen_completion(Shell::PowerShell, &out_dir, &mut Opt::command()).unwrap();
         gen_completion(Shell::Zsh, &out_dir, &mut Opt::command()).unwrap();
     }
+
+    // MAN_PATH=./man cargo build
+    if let Ok(path) = std::env::var("MAN_PATH") {
+        let out_dir = std::path::Path::new(&path);
+        std::fs::create_dir_all(out_dir).unwrap();
+        let cmd = Opt::command();
+        let man = clap_mangen::Man::new(cmd);
+        let mut buf = Vec::new();
+        man.render(&mut buf).unwrap();
+        std::fs::write(out_dir.join("procs.1"), buf).unwrap();
+        println!(
+            "man page is generated: {}",
+            out_dir.join("procs.1").display()
+        );
+    }
 }
diff --git a/src/main.rs b/src/main.rs
index 077d0aa..6ea5afe 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -18,6 +18,7 @@ use crate::view::View;
 use crate::watcher::Watcher;
 use anyhow::{Context, Error};
 use clap::{CommandFactory, Parser};
+use clap_mangen::Man;
 use console::Term;
 use once_cell::sync::Lazy;
 use std::cmp;
@@ -155,6 +156,11 @@ fn run() -> Result<(), Error> {
             &mut stdout(),
         );
         Ok(())
+    } else if opt.gen_man_page {
+        let cmd = command_with_kind_values();
+        let man = Man::new(cmd);
+        man.render(&mut stdout())?;
+        Ok(())
     } else {
         let config = get_config(&opt)?;
         if opt.watch_mode {
diff --git a/src/opt.rs b/src/opt.rs
index 607b22d..c7e37dd 100644
--- a/src/opt.rs
+++ b/src/opt.rs
@@ -172,6 +172,10 @@ pub struct Opt {
     #[clap(long = "gen-completion-out", value_name = "shell")]
     pub gen_completion_out: Option<Shell>,
 
+    /// Generate man page and write to stdout
+    #[clap(long = "gen-man-page")]
+    pub gen_man_page: bool,
+
     /// Suppress header
     #[clap(long = "no-header")]
     pub no_header: bool,