diff --git a/ipcalc.spec b/ipcalc.spec
index f5d12c05b5a2fd9d01cb91927d47dcddb389ca07..5ad8928b9f960040adaa542983aa8ff3d4deae0a 100644
--- a/ipcalc.spec
+++ b/ipcalc.spec
@@ -1,6 +1,8 @@
+%define anolis_release .0.1
+
 Name: ipcalc
 Version: 0.2.4
-Release: 4%{?dist}
+Release: 4%{anolis_release}%{?dist}
 Summary: IP network address calculator
 
 # This is an updated version of ipcalc originally found
@@ -29,6 +31,14 @@ IP network information in human readable format, in a format suitable for
 parsing in scripts, generate random private addresses, resolve an IP address,
 or check the validity of an address.
 
+%package doc
+Summary: Documents for %{name}
+BuildArch: noarch
+Requires: %{name} = %{version}-%{release}
+
+%description doc
+Doc pages for %{name}.
+
 %prep
 %autosetup -S git
 
@@ -49,10 +59,15 @@ make check
 
 %{_bindir}/ipcalc
 %license COPYING
-%doc README.md
 %{_mandir}/man1/ipcalc.1*
 
+%files doc
+%doc README.md
+
 %changelog
+* Mon Jul 18 2022 DengXiewei <dengxiewei@linux.alibaba.com> - 0.2.4-4.0.1
+- Add doc sub package
+
 * Thu Oct 10 2019 Martin Osvald <mosvald@redhat.com> - 0.2.4-4
 - Add support for RFC3021 (#1638834)