diff --git a/hwe/c_double.php b/hwe/c_double.php
index e62bfaf1..d61718cd 100644
--- a/hwe/c_double.php
+++ b/hwe/c_double.php
@@ -106,6 +106,31 @@ if($command == 61) {
     die();
 } 
 
+// 국호변경
+if($command == 82) {
+    $query = "select no,nation,level from general where owner='{$userID}'";
+    $result = MYDB_query($query, $connect) or Error(__LINE__.MYDB_error($connect),"");
+    $me = MYDB_fetch_array($result);
+    
+    $name = StringUtil::neutralize($name);
+    if($name == "") { $name = "무명"; }
+
+    $db->update('general', [
+        'makenation'=>$name
+    ], 'owner=%i', $userID);
+
+    $count = count($turn);
+    $str = "type=type";
+    for($i=0; $i < $count; $i++) {
+        $str .= ",l{$me['level']}turn{$turn[$i]}='{$comStr}'";
+    }
+    $query = "update nation set {$str} where nation='{$me['nation']}'";
+    MYDB_query($query, $connect) or Error(__LINE__.MYDB_error($connect),"");
+    
+    header('location:b_chiefcenter.php', true, 303);
+    die();
+}
+
 //포상, 몰수, 발령, 항복권고, 원조
 //선전포고, 종전, 파기, 초토화, 천도, 증축, 감축
 //백성동원, 수몰, 허보, 피장파장, 의병모집, 이호경식, 급습
@@ -130,6 +155,8 @@ if($command == 23 || $command == 24 || $command == 27 || $command == 51 || $comm
     die();  
 }
 
+
+
 //일반 턴
 $query = [];
 foreach($turn as $turnIdx){
diff --git a/hwe/func.php b/hwe/func.php
index 3ab0564e..2695f724 100644
--- a/hwe/func.php
+++ b/hwe/func.php
@@ -759,9 +759,10 @@ function CoreCommandTable() {
     $result = MYDB_query($query, $connect) or Error(__LINE__.MYDB_error($connect),"");
     $me = MYDB_fetch_array($result);
 
-    $query = "select level,can_change_flag from nation where nation='{$me['nation']}'";
+    $query = "select level,can_change_flag,aux from nation where nation='{$me['nation']}'";
     $result = MYDB_query($query, $connect) or Error(__LINE__.MYDB_error($connect),"");
     $nation = MYDB_fetch_array($result);
+    $nationAux = Json::decode($nation['aux']);
 
     $query = "select no from general where nation='{$me['nation']}'";
     $result = MYDB_query($query, $connect) or Error(__LINE__.MYDB_error($connect),"");
@@ -831,6 +832,12 @@ function CoreCommandTable() {
     } else {
         addCommand("국기 변경", 81, 0);
     }
+    if($nation['level']==7 && !$nationAux['used_82']??0){
+        addCommand("국호 변경", 82, 1);
+    }
+    else{
+        addCommand("국호 변경", 82, 0);
+    }
     commandGroup("", 1);
     echo "
 </select>
diff --git a/hwe/func_command.php b/hwe/func_command.php
index 10348cab..a3bc018b 100644
--- a/hwe/func_command.php
+++ b/hwe/func_command.php
@@ -476,6 +476,9 @@ function getCoreTurn($nation, $level) {
 
                 $str[$i] = "【<font color={$color}>국기</font>】를 변경";
                 break;
+            case 82: //국호변경
+                $str[$i] = "국호를 변경";
+                break;
             default:
                 $str[$i] = "????";
                 break;
@@ -552,6 +555,7 @@ function processCommand($no, $reduceTurn) {
                 case 77: process_77($general); break; //이호경식
                 case 78: process_78($general); break; //급습
                 case 81: process_81($general); break; //국기변경
+                case 82: process_82($general); break; //국호변경
                 case 99: break; //수뇌부휴식
             }
 
diff --git a/hwe/func_gamerule.php b/hwe/func_gamerule.php
index 7250f2d2..eea543a2 100644
--- a/hwe/func_gamerule.php
+++ b/hwe/func_gamerule.php
@@ -1015,6 +1015,7 @@ function updateNationState() {
                     $josaUl = JosaUtil::pick(getNationLevel($nationlevel), '을');
                     $history[] = "<C>●</>{$admin['year']}년 {$admin['month']}월:<Y><b>【작위】</b></><D><b>{$nation['name']}</b></>의 군주가 <Y>".getNationLevel($nationlevel)."</>{$josaUl} 자칭하였습니다.";
                     pushNationHistory($nation, "<C>●</>{$admin['year']}년 {$admin['month']}월:<D><b>{$nation['name']}</b></>의 군주가 <Y>".getNationLevel($nationlevel)."</>{$josaUl} 자칭");
+                    $db->update('nation', ['can_change_flag'=>1], 'nation=%i', $nation['nation']);
                     break;
                 case 6:
                     $history[] = "<C>●</>{$admin['year']}년 {$admin['month']}월:<Y><b>【작위】</b></><D><b>{$nation['name']}</b></>의 군주가 <Y>".getNationLevel($nationlevel)."</>에 등극하였습니다.";
diff --git a/hwe/func_process_chief.php b/hwe/func_process_chief.php
index 599cb7c0..6deaab71 100644
--- a/hwe/func_process_chief.php
+++ b/hwe/func_process_chief.php
@@ -2477,3 +2477,83 @@ function process_81(&$general) {
     pushGeneralPublicRecord($alllog, $admin['year'], $admin['month']);
     pushGenLog($general, $log);
 }
+
+function process_82(&$general) {
+    $db = DB::db();
+    $gameStor = KVStorage::getStorage($db, 'game_env');
+    $connect=$db->get();
+
+    $log = [];
+    $alllog = [];
+    $history = [];
+    
+    $date = substr($general['turntime'],11,5);
+
+    $admin = $gameStor->getValues(['year','month']);
+
+    $query = "select nation from city where city='{$general['city']}'";
+    $result = MYDB_query($query, $connect) or Error(__LINE__.MYDB_error($connect),"");
+    $city = MYDB_fetch_array($result);
+
+    $query = "select nation,name,type,sabotagelimit,aux from nation where nation='{$general['nation']}'";
+    $result = MYDB_query($query, $connect) or Error(__LINE__.MYDB_error($connect),"");
+    $nation = MYDB_fetch_array($result);
+    $nationAux = Json::decode($nation['aux']??'{}');
+    $newNationName = $general['makenation'];
+
+    $nationExists = $db->queryFirstField('SELECT nation FROM nation WHERE name = %s', $newNationName);
+    
+    if($nationExists){
+        $log[] = "<C>●</>{$admin['month']}월:이미 같은 국호를 가진 곳이 있습니다. 국호변경 실패. <1>$date</>";
+    }
+    else if($city['nation'] != $general['nation']) {
+        $log[] = "<C>●</>{$admin['month']}월:아국이 아닙니다. 국호변경 실패. <1>$date</>";
+    } elseif($general['level'] < 5) {
+        $log[] = "<C>●</>{$admin['month']}월:수뇌부가 아닙니다. 국호변경 실패. <1>$date</>";
+    } elseif($nationAux['used_82']??0) {
+        $log[] = "<C>●</>{$admin['month']}월:더이상 변경이 불가능합니다. 국호변경 실패. <1>$date</>";
+    } else {
+        $josaRo = JosaUtil::pick($newNationName, '로');
+        $log[] = "<C>●</>{$admin['month']}월:국호를 <D><b>{$newNationName}{$josaRo}</b></> 변경합니다. <1>$date</>";
+        $exp = 10;
+        $ded = 10;
+
+        // 성격 보정
+        $exp = CharExperience($exp, $general['personal']);
+        $ded = CharDedication($ded, $general['personal']);
+
+        $josaYi = JosaUtil::pick($general['name'], '이');
+        $josaYiNation = JosaUtil::pick($nation['name'], '이');
+
+        $query = "select no,name from general where nation='{$general['nation']}' and no!='{$general['no']}'";
+        $result = MYDB_query($query, $connect) or Error(__LINE__.MYDB_error($connect),"");
+        $cnt = MYDB_num_rows($result);
+        $genlog = ["<C>●</><Y>{$general['name']}</>{$josaYi} 국호를 <D><b>{$newNationName}</b></>{$josaRo} 변경합니다."];
+        for($i=0; $i < $cnt; $i++) {
+            $gen = MYDB_fetch_array($result);
+            pushGenLog($gen, $genlog);
+        }
+
+        $alllog[] = "<C>●</>{$admin['month']}월:<Y>{$general['name']}</>{$josaYi} 국호를 <D><b>{$newNationName}</b></>{$josaRo} 변경합니다.";
+        $history[] = "<C>●</>{$admin['year']}년 {$admin['month']}월:<L><b>【국호변경】</b></><D><b>{$nation['name']}</b></>{$josaYiNation} 국호를 <D><b>{$newNationName}</b></>{$josaRo} 변경합니다.";
+        pushGeneralHistory($general, "<C>●</>{$admin['year']}년 {$admin['month']}월:국호를 <D><b>{$newNationName}</b></>{$josaRo} 변경");
+        pushNationHistory($nation, "<C>●</>{$admin['year']}년 {$admin['month']}월:<Y>{$general['name']}</>{$josaYi} 국호를 <D><b>{$newNationName}</b></>{$josaRo} 변경");
+
+        $nationAux['used_82'] = 1;
+        //국기변경
+        $db->update('nation', [
+            'name'=>$newNationName,
+            'aux'=>Json::encode($nationAux)
+        ], 'nation=%i', $nation['nation']);
+
+        //경험치, 공헌치
+        $query = "update general set dedication=dedication+'$ded',experience=experience+'$exp' where no='{$general['no']}'";
+        MYDB_query($query, $connect) or Error(__LINE__.MYDB_error($connect),"");
+
+        refreshNationStaticInfo();
+    }
+
+    pushWorldHistory($history, $admin['year'], $admin['month']);
+    pushGeneralPublicRecord($alllog, $admin['year'], $admin['month']);
+    pushGenLog($general, $log);
+}
\ No newline at end of file
diff --git a/hwe/j_preprocessing.php b/hwe/j_preprocessing.php
index 246490b1..ca100932 100644
--- a/hwe/j_preprocessing.php
+++ b/hwe/j_preprocessing.php
@@ -124,6 +124,7 @@ switch($commandtype) {
 //    case 78: command_78($turn, 78); break; //급습
 
 //    case 81: command_81($turn, 81); break; //국기변경
+//    case 82: command_82($turn, 82); break; //국호변경
 
 //    case 99: command_99($turn); break; //수뇌부 후식
     default: command_Other($turn, $commandtype); break;
diff --git a/hwe/processing.php b/hwe/processing.php
index dedab31f..71a393c4 100644
--- a/hwe/processing.php
+++ b/hwe/processing.php
@@ -117,6 +117,7 @@ switch($commandtype) {
     case 77: command_77($turn, 77); break; //이호경식
     case 78: command_78($turn, 78); break; //급습
     case 81: command_81($turn, 81); break; //국기변경
+    case 82: command_82($turn, 82); break; //국호변경
     case 99: command_99($turn); break; //수뇌부 휴식
     
     default:command_Single($turn, 0); break; //휴식
@@ -2620,3 +2621,36 @@ function command_81($turn, $command) {
 ";
     ender(1);
 }
+
+function command_82($turn, $command) {
+    $db = DB::db();
+    $gameStor = KVStorage::getStorage($db, 'game_env');
+    $connect=$db->get();
+
+    $userID = Session::getUserID();
+    $nationID = $db->queryFirstField('SELECT nation FROM general WHERE owner = %i', $userID);
+    $nation = $db->queryFirstRow('SELECT level,aux FROM nation WHERE nation = %i', $nationID);
+    $nationAux = Json::decode($nation['aux']??'{}');
+
+    starter("국호변경");
+
+    if($nation && $nation['level'] == 7 && !$nationAux['used_82']??0){
+?>
+나라의 이름을 바꿉니다. 황제가 된 후 1회 가능합니다.<br>
+
+<form name=form1 action=c_double.php method=post>
+국명 : <input type=text name=name size=18 maxlength=9 style=text-align:right;color:white;background-color:black>
+
+<input type=submit value='국호 변경'>
+<input type=hidden name=command value=<?=$command?>>
+<?php
+        for($i=0; $i < count($turn); $i++) {
+            echo "<input type=hidden name=turn[] value=$turn[$i]>";
+        }
+
+        echo "</form>";
+    } else {
+        echo "국호 변경이 불가능합니다.<br>";
+    }
+    ender();
+}
\ No newline at end of file