diff --git a/deploy/webmin.sh b/deploy/webmin.sh
new file mode 100644
index 00000000..0653f177
--- /dev/null
+++ b/deploy/webmin.sh
@@ -0,0 +1,110 @@
+#!/usr/bin/env sh
+
+#Here is a script to deploy cert to webmin server.
+
+#returns 0 means success, otherwise error.
+
+#DEPLOY_WEBMIN_CONF="/etc/webmin/miniserv.conf"
+#DEPLOY_WEBMIN_RELOAD="service webmin restart"
+
+########  Public functions #####################
+
+#domain keyfile certfile cafile fullchain
+webmin_deploy() {
+  _cdomain="$1"
+  _ckey="$2"
+  _ccert="$3"
+  _cca="$4"
+  _cfullchain="$5"
+
+  _debug _cdomain "$_cdomain"
+  _debug _ckey "$_ckey"
+  _debug _ccert "$_ccert"
+  _debug _cca "$_cca"
+  _debug _cfullchain "$_cfullchain"
+
+  _ssl_path="/etc/acme.sh/webmin"
+  if ! mkdir -p "$_ssl_path"; then
+    _err "Can not create folder:$_ssl_path"
+    return 1
+  fi
+
+  _info "Copying key and cert"
+  _real_key="$_ssl_path/webmin.key"
+  if ! cat "$_ckey" >"$_real_key"; then
+    _err "Error: write key file to: $_real_key"
+    return 1
+  fi
+  
+  _real_fullchain="$_ssl_path/webmin.pem"
+  if ! cat "$_real_key" "$_cfullchain" > "$_real_fullchain"; then
+    _err "Error: write key file to: $_real_fullchain"
+    return 1
+  fi
+
+  DEFAULT_WEBMIN_RELOAD="service webmin restart"
+  _reload="${DEPLOY_WEBMIN_RELOAD:-$DEFAULT_WEBMIN_RELOAD}"
+
+  if [ -z "$IS_RENEW" ]; then
+    DEFAULT_WEBMIN_CONF="/etc/webmin/miniserv.conf"
+    _webmin_conf="${DEPLOY_WEBMIN_CONF:-$DEFAULT_WEBMIN_CONF}"
+    if [ ! -f "$_webmin_conf" ]; then
+      if [ -z "$DEPLOY_WEBMIN_CONF" ]; then
+        _err "webmin conf is not found, please define DEPLOY_WEBMIN_CONF"
+        return 1
+      else
+        _err "It seems that the specified webmin conf is not valid, please check."
+        return 1
+      fi
+    fi
+    if [ ! -w "$_webmin_conf" ]; then
+      _err "The file $_webmin_conf is not writable, please change the permission."
+      return 1
+    fi
+    _backup_conf="$DOMAIN_BACKUP_PATH/miniserv.conf.bak"
+    _info "Backup $_webmin_conf to $_backup_conf"
+    cp "$_webmin_conf" "$_backup_conf"
+
+    _info "Modify webmin conf: $_webmin_conf"
+    if _setopt "$_webmin_conf" "keyfile""=""$_real_fullchain" \
+      && _setopt "$_webmin_conf" "extracas""=""$_ssl_path/ca.cer"; then
+      _info "Set config success!"
+    else
+      _err "Config webmin server error, please report bug to us."
+      _info "Restoring webmin conf"
+      if cat "$_backup_conf" >"$_webmin_conf"; then
+        _info "Restore conf success"
+        eval "$_reload"
+      else
+        _err "Opps, error restore webmin conf, please report bug to us."
+      fi
+      return 1
+    fi
+  fi
+
+  _info "Run reload: $_reload"
+  if eval "$_reload"; then
+    _info "Reload success!"
+    if [ "$DEPLOY_WEBMIN_CONF" ]; then
+      _savedomainconf DEPLOY_WEBMIN_CONF "$DEPLOY_WEBMIN_CONF"
+    else
+      _cleardomainconf DEPLOY_WEBMIN_CONF
+    fi
+    if [ "$DEPLOY_WEBMIN_RELOAD" ]; then
+      _savedomainconf DEPLOY_WEBMIN_RELOAD "$DEPLOY_WEBMIN_RELOAD"
+    else
+      _cleardomainconf DEPLOY_WEBMIN_RELOAD
+    fi
+    return 0
+  else
+    _err "Reload error, restoring"
+    if cat "$_backup_conf" >"$_webmin_conf"; then
+      _info "Restore conf success"
+      eval "$_reload"
+    else
+      _err "Opps, error restore webmin conf, please report bug to us."
+    fi
+    return 1
+  fi
+  return 0
+}