diff --git a/bbs/list.php b/bbs/list.php
index 1bb0e4cd0..4752a316c 100644
--- a/bbs/list.php
+++ b/bbs/list.php
@@ -33,7 +33,11 @@ if ($sop != 'and' && $sop != 'or')
 
 // 분류 선택 또는 검색어가 있다면
 $stx = trim($stx);
-if ($sca || $stx) {
+//검색인지 아닌지 구분하는 변수 초기화
+$is_search_bbs = false;
+
+if ($sca || $stx || $stx === '0') {     //검색이면
+    $is_search_bbs = true;      //검색구분변수 true 지정
     $sql_search = get_sql_search($sca, $sfl, $stx, $sop);
 
     // 가장 작은 번호를 얻어서 변수에 저장 (하단의 페이징에서 사용)
@@ -80,7 +84,7 @@ $notice_count = 0;
 $notice_array = array();
 
 // 공지 처리
-if (!$sca && !$stx) {
+if (!$is_search_bbs) {
     $arr_notice = explode(',', trim($board['bo_notice']));
     $from_notice_idx = ($page - 1) * $page_rows;
     if($from_notice_idx < 0)
@@ -162,7 +166,7 @@ if ($sst) {
     $sql_order = " order by {$sst} {$sod} ";
 }
 
-if ($sca || $stx) {
+if ($is_search_bbs) {
     $sql = " select distinct wr_parent from {$write_table} where {$sql_search} {$sql_order} limit {$from_record}, $page_rows ";
 } else {
     $sql = " select * from {$write_table} where wr_is_comment = 0 ";
@@ -180,7 +184,7 @@ if($page_rows > 0) {
     while ($row = sql_fetch_array($result))
     {
         // 검색일 경우 wr_id만 얻었으므로 다시 한행을 얻는다
-        if ($sca || $stx)
+        if ($is_search_bbs)
             $row = sql_fetch(" select * from {$write_table} where wr_id = '{$row['wr_parent']}' ");
 
         $list[$i] = get_list($row, $board, $board_skin_url, G5_IS_MOBILE ? $board['bo_mobile_subject_len'] : $board['bo_subject_len']);
@@ -201,7 +205,7 @@ $write_pages = get_paging(G5_IS_MOBILE ? $config['cf_mobile_pages'] : $config['c
 $list_href = '';
 $prev_part_href = '';
 $next_part_href = '';
-if ($sca || $stx) {
+if ($is_search_bbs) {
     $list_href = './board.php?bo_table='.$bo_table;
 
     $patterns = array('#&amp;page=[0-9]*#', '#&amp;spt=[0-9\-]*#');
diff --git a/bbs/view.php b/bbs/view.php
index 1031da62c..1cfe55f67 100644
--- a/bbs/view.php
+++ b/bbs/view.php
@@ -10,7 +10,7 @@ if ($sop != 'and' && $sop != 'or')
 
 $sql_search = "";
 // 검색이면
-if ($sca || $stx) {
+if ($sca || $stx || $stx === '0') {
     // where 문을 얻음
     $sql_search = get_sql_search($sca, $sfl, $stx, $sop);
     $search_href = './board.php?bo_table='.$bo_table.'&amp;page='.$page.$qstr;
diff --git a/common.php b/common.php
index acf9a345a..68970c9c7 100644
--- a/common.php
+++ b/common.php
@@ -250,7 +250,7 @@ if (isset($_REQUEST['sfl']))  {
 
 if (isset($_REQUEST['stx']))  { // search text (검색어)
     $stx = get_search_string(trim($_REQUEST['stx']));
-    if ($stx)
+    if ($stx || $stx === '0')
         $qstr .= '&amp;stx=' . urlencode(cut_str($stx, 20, ''));
 } else {
     $stx = '';
diff --git a/lib/common.lib.php b/lib/common.lib.php
index b194ffeeb..23f0db8ff 100644
--- a/lib/common.lib.php
+++ b/lib/common.lib.php
@@ -458,7 +458,7 @@ function search_font($stx, $str)
     $src = array('/', '|');
     $dst = array('\/', '\|');
 
-    if (!trim($stx)) return $str;
+    if (!trim($stx) && $stx !== '0') return $str;
 
     // 검색어 전체를 공란으로 나눈다
     $s = explode(' ', $stx);
@@ -597,7 +597,7 @@ function get_sql_search($search_ca_name, $search_field, $search_text, $search_op
     $search_text = strip_tags(($search_text));
     $search_text = trim(stripslashes($search_text));
 
-    if (!$search_text) {
+    if (!$search_text && $search_text !== '0') {
         if ($search_ca_name) {
             return $str;
         } else {