diff --git a/adm/config_form.php b/adm/config_form.php
index c58dba69d..5a4b6f5ee 100644
--- a/adm/config_form.php
+++ b/adm/config_form.php
@@ -139,6 +139,11 @@ if(!isset($config['cf_mobile_page_rows'])) {
                     ADD `cf_mobile_page_rows` int(11) NOT NULL DEFAULT '0' AFTER `cf_page_rows` ", true);
 }
 
+if(!isset($config['cf_cert_req'])) {
+    sql_query(" ALTER TABLE `{$g5['config_table']}`
+                    ADD `cf_cert_req` tinyint(4) NOT NULL DEFAULT '0' AFTER `cf_cert_limit` ", true);
+}
+
 if(!isset($config['cf_faq_skin'])) {
     sql_query(" ALTER TABLE `{$g5['config_table']}`
                     ADD `cf_faq_skin` varchar(255) NOT NULL DEFAULT '' AFTER `cf_connect_skin`,
@@ -782,6 +787,13 @@ if ($config['cf_icode_id'] && $config['cf_icode_pw']) {
                 <input type="text" name="cf_cert_limit" value="<?php echo $config['cf_cert_limit']; ?>" id="cf_cert_limit" class="frm_input" size="3"> 회
             </td>
         </tr>
+        <tr>
+            <th scope="row" class="cf_cert_service"><label for="cf_cert_req">본인확인 필수</label></th>
+            <td class="cf_cert_service">
+                <?php echo help('회원가입 때 본인확인을 필수로 할지 설정합니다. 필수로 설정하시면 본인확인을 하지 않은 경우 회원가입이 안됩니다.'); ?>
+                <input type="checkbox" name="cf_cert_req" value="1" id="cf_cert_req"<?php echo get_checked($config['cf_cert_req'], 1); ?>> 예
+            </td>
+        </tr>
         </tbody>
         </table>
     </div>
diff --git a/adm/config_form_update.php b/adm/config_form_update.php
index 07dd74f20..dfbe8e426 100644
--- a/adm/config_form_update.php
+++ b/adm/config_form_update.php
@@ -116,6 +116,7 @@ $sql = " update {$g5['config_table']}
                 cf_cert_kcb_cd = '{$_POST['cf_cert_kcb_cd']}',
                 cf_cert_kcp_cd = '{$_POST['cf_cert_kcp_cd']}',
                 cf_cert_limit = '{$_POST['cf_cert_limit']}',
+                cf_cert_req = '{$_POST['cf_cert_req']}',
                 cf_sms_use = '{$_POST['cf_sms_use']}',
                 cf_icode_id = '{$_POST['cf_icode_id']}',
                 cf_icode_pw = '{$_POST['cf_icode_pw']}',
diff --git a/bbs/register_form_update.php b/bbs/register_form_update.php
index 4d57c6d76..5f39cd2b6 100644
--- a/bbs/register_form_update.php
+++ b/bbs/register_form_update.php
@@ -76,6 +76,12 @@ if ($w == '' || $w == 'u') {
     if ($w=='') {
         if ($msg = exist_mb_id($mb_id))     alert($msg);
 
+        // 본인확인 체크
+        if($config['cf_cert_use'] && $config['cf_cert_req']) {
+            if(trim($_POST['cert_no']) != $_SESSION['ss_cert_no'])
+                alert("회원가입을 위해서는 본인확인을 해주셔야 합니다.");
+        }
+
         if ($config['cf_use_recommend'] && $mb_recommend) {
             if (!exist_mb_id($mb_recommend))
                 alert("추천인이 존재하지 않습니다.");
diff --git a/install/gnuboard5.sql b/install/gnuboard5.sql
index 8961381fc..baa2f632a 100644
--- a/install/gnuboard5.sql
+++ b/install/gnuboard5.sql
@@ -280,6 +280,7 @@ CREATE TABLE IF NOT EXISTS `g5_config` (
   `cf_cert_kcb_cd` varchar(255) NOT NULL DEFAULT '',
   `cf_cert_kcp_cd` varchar(255) NOT NULL DEFAULT '',
   `cf_cert_limit` int(11) NOT NULL DEFAULT '0',
+  `cf_cert_req` tinyint(4) NOT NULL DEFAULT '0',
   `cf_sms_use` varchar(255) NOT NULL DEFAULT '',
   `cf_icode_id` varchar(255) NOT NULL DEFAULT '',
   `cf_icode_pw` varchar(255) NOT NULL DEFAULT '',
diff --git a/mobile/skin/member/basic/register_form.skin.php b/mobile/skin/member/basic/register_form.skin.php
index 06c176d31..7240e9b4c 100644
--- a/mobile/skin/member/basic/register_form.skin.php
+++ b/mobile/skin/member/basic/register_form.skin.php
@@ -17,6 +17,7 @@ add_stylesheet('<link rel="stylesheet" href="'.$member_skin_url.'/style.css">',
     <input type="hidden" name="agree" value="<?php echo $agree ?>">
     <input type="hidden" name="agree2" value="<?php echo $agree2 ?>">
     <input type="hidden" name="cert_type" value="<?php echo $member['mb_certify']; ?>">
+    <input type="hidden" name="cert_no" value="">
     <?php if (isset($member['mb_sex'])) { ?><input type="hidden" name="mb_sex" value="<?php echo $member['mb_sex'] ?>"><?php } ?>
     <?php if (isset($member['mb_nick_date']) && $member['mb_nick_date'] > date("Y-m-d", G5_SERVER_TIME - ($config['cf_nick_modify'] * 86400))) { // 닉네임수정일이 지나지 않았다면 ?>
     <input type="hidden" name="mb_nick_default" value="<?php echo $member['mb_nick'] ?>">
@@ -371,6 +372,14 @@ add_stylesheet('<link rel="stylesheet" href="'.$member_skin_url.'/style.css">',
             }
         }
 
+        <?php if($w == '' && $config['cf_cert_use'] && $config['cf_cert_req']) { ?>
+        // 본인확인 체크
+        if(f.cert_no.value=="") {
+            alert("회원가입을 위해서는 본인확인을 해주셔야 합니다.");
+            return false;
+        }
+        <?php } ?>
+
         // 닉네임 검사
         if ((f.w.value == "") || (f.w.value == "u" && f.mb_nick.defaultValue != f.mb_nick.value)) {
             var msg = reg_mb_nick_check();
diff --git a/plugin/kcpcert/kcpcert_result.php b/plugin/kcpcert/kcpcert_result.php
index a7e06a03f..e18c9d1ff 100644
--- a/plugin/kcpcert/kcpcert_result.php
+++ b/plugin/kcpcert/kcpcert_result.php
@@ -181,8 +181,11 @@ $(function() {
     var $opener = window.opener;
 
     // 인증정보
+    $opener.$("input[name=cert_type]").val("<?php echo $cert_type; ?>");
     $opener.$("input[name=mb_name]").val("<?php echo $user_name; ?>").attr("readonly", true);
     $opener.$("input[name=mb_hp]").val("<?php echo $phone_no; ?>").attr("readonly", true);
+    $opener.$("input[name=cert_no]").val("<?php echo $md5_cert_no; ?>");
+
     alert("본인의 휴대폰번호로 확인 되었습니다.");
     window.close();
 });
diff --git a/plugin/okname/hpcert2.php b/plugin/okname/hpcert2.php
index 5a53777f6..091f8e654 100644
--- a/plugin/okname/hpcert2.php
+++ b/plugin/okname/hpcert2.php
@@ -133,6 +133,8 @@ $(function() {
     $opener.$("input[name=cert_type]").val("<?php echo $cert_type; ?>");
     $opener.$("input[name=mb_name]").val("<?php echo $mb_name; ?>").attr("readonly", true);
     $opener.$("input[name=mb_hp]").val("<?php echo $phone_no; ?>").attr("readonly", true);
+    $opener.$("input[name=cert_no]").val("<?php echo $md5_cert_no; ?>");
+
     alert("본인의 휴대폰번호로 확인 되었습니다.");
     window.close();
 });
diff --git a/plugin/okname/ipin2.php b/plugin/okname/ipin2.php
index dda65f104..021f48c76 100644
--- a/plugin/okname/ipin2.php
+++ b/plugin/okname/ipin2.php
@@ -102,6 +102,8 @@ $(function() {
 
     $opener.$("input[name=cert_type]").val("<?php echo $cert_type; ?>");
     $opener.$("input[name=mb_name]").val("<?php echo $mb_name; ?>").attr("readonly", true);
+    $opener.$("input[name=cert_no]").val("<?php echo $md5_cert_no; ?>");
+
     window.close();
 });
 </script>
diff --git a/skin/member/basic/register_form.skin.php b/skin/member/basic/register_form.skin.php
index c6f39d995..48893971c 100644
--- a/skin/member/basic/register_form.skin.php
+++ b/skin/member/basic/register_form.skin.php
@@ -19,6 +19,7 @@ add_stylesheet('<link rel="stylesheet" href="'.$member_skin_url.'/style.css">',
     <input type="hidden" name="agree" value="<?php echo $agree ?>">
     <input type="hidden" name="agree2" value="<?php echo $agree2 ?>">
     <input type="hidden" name="cert_type" value="<?php echo $member['mb_certify']; ?>">
+    <input type="hidden" name="cert_no" value="">
     <?php if (isset($member['mb_sex'])) {  ?><input type="hidden" name="mb_sex" value="<?php echo $member['mb_sex'] ?>"><?php }  ?>
     <?php if (isset($member['mb_nick_date']) && $member['mb_nick_date'] > date("Y-m-d", G5_SERVER_TIME - ($config['cf_nick_modify'] * 86400))) { // 닉네임수정일이 지나지 않았다면  ?>
     <input type="hidden" name="mb_nick_default" value="<?php echo $member['mb_nick'] ?>">
@@ -365,6 +366,14 @@ add_stylesheet('<link rel="stylesheet" href="'.$member_skin_url.'/style.css">',
             */
         }
 
+        <?php if($w == '' && $config['cf_cert_use'] && $config['cf_cert_req']) { ?>
+        // 본인확인 체크
+        if(f.cert_no.value=="") {
+            alert("회원가입을 위해서는 본인확인을 해주셔야 합니다.");
+            return false;
+        }
+        <?php } ?>
+
         // 닉네임 검사
         if ((f.w.value == "") || (f.w.value == "u" && f.mb_nick.defaultValue != f.mb_nick.value)) {
             var msg = reg_mb_nick_check();