diff --git a/src/web/module/maestro_section_register.html b/src/web/module/maestro_section_register.html
index 9948f1f..2973d22 100644
--- a/src/web/module/maestro_section_register.html
+++ b/src/web/module/maestro_section_register.html
@@ -51,8 +51,7 @@ function checkMaestroID() {
 			let message = maestroName + " : 새로 등록할 수 있는 마에스트로 아이디입니다.";
 			showErrorMessage(message, "success");
 
-			$("#id_ckeck_help").text("");
-			$("#password").focus();
+			// $("#password").focus();
 		},
 
 		(errorMessage, errorCode) => {
@@ -83,7 +82,7 @@ function checkData() {
 		showErrorMessage("아이디를 입력해 주세요.", "error");
 		$("#maestro_name").focus();
 		return;
-	}else if(!isAvailableID) {
+	} else if(!isAvailableID) {
 		onErrorMaestroID("아이디 중복 확인을 해 주세요.", "error");
 		$("#check_id").focus();
 		return;
diff --git a/src/web/module/maestro_setup.html b/src/web/module/maestro_setup.html
index 2477431..91aff0b 100644
--- a/src/web/module/maestro_setup.html
+++ b/src/web/module/maestro_setup.html
@@ -1,7 +1,193 @@
 <script>
 
+let isChangedIDName = false;
+let isAvailableIDName = false;
+let registeredMaestroIDName = "";
+let registeredEmail = "";
+let registeredPassword = "";
+
+
+let newMaestroIDName = "";
+let newEmail = "";
+
+let newPassword = "";
+let newPasswordVerify = "";
+
+
+$(document).ready(function() {
+	loadMaestroInfo(maestroID);
+
+	$('#maestro_id').bind('input propertychange', function() {
+		onChangeMaestroIDName();
+	});
+});
+
+function loadMaestroInfo(maestroID) {
+	sendRequestServer(	//url, sendParams, onSuccess, onFail, isDebugMode);
+		"./../server/maestro/maestro_info.php",
+		"maestro_id=" + maestroID,
+
+		(jsonData) => {
+			console.log(jsonData);
+			registeredMaestroIDName = jsonData.name;
+			$("#maestro_id").val(registeredMaestroIDName);
+
+			registeredEmail = jsonData.email;
+			$("#email").val(registeredEmail);
+		},
+
+		(errorMessage, errorCode) => {
+			showErrorMessage(errorMessage, "error");
+		}
+
+	);
+}
+
+function onChangeMaestroIDName() {
+	isChangedIDName = true;
+	isAvailableIDName = false;
+	$("#id_ckeck").prop("disabled", false)
+	$("#id_ckeck_help").removeClass("d-none");
+}
+
+function checkMaestroIDName() {
+	newMaestroIDName = $("#maestro_id").val();
+
+	if(!accountValidator.isValidMaestroID(newMaestroIDName)) {
+		showErrorMessage(accountValidator.messageForInvalidMaestroID(newMaestroIDName), "error");
+		$("#maestro_id").focus();
+		$("#maestro_id").select();
+		return;
+	}
+
+	sendRequestServer(	//url, sendParams, onSuccess, onFail, isDebugMode);
+		"./../server/maestro/check_id.php",
+		"maestro_name=" + newMaestroIDName,
+
+		(jsonData) => {
+			isAvailableIDName = true;
+			isChangedIDName = false;
+			showErrorMessage(newMaestroIDName + " : 새로 등록할 수 있는 마에스트로 아이디입니다.", "success");
+
+			$("#id_ckeck").prop("disabled", true)
+			$("#id_ckeck_help").addClass("d-none");
+		},
+
+		(errorMessage, errorCode) => {
+			isAvailableIDName = false;
+			showErrorMessage(errorMessage, "error");
+			// $("#maestro_name").val("");
+			$("#maestro_id").focus();
+			$("#maestro_id").select();
+		}
+
+	);
+}
+
 function changeMaestroInfo() {
-	location.href="main_menu.html";
+	newMaestroIDName = $("#maestro_id").val();
+	if(newMaestroIDName.length === 0) {
+		showErrorMessage("변경할 아이디를 입력해 주세요.", "error");
+		$("#maestro_id").focus();
+		return;
+	} else if(isChangedIDName && !isAvailableIDName) {
+		showErrorMessage("아이디 중복 확인을 해 주세요.", "error");
+		$("#id_ckeck").focus();
+		return;
+	}
+
+	newEmail = $("#email").val();
+	if(newEmail.length === 0) {
+		showErrorMessage("이메일을 입력해 주세요.", "error");
+		$("#email").focus();
+		return;
+	}
+
+	if(registeredMaestroIDName === newMaestroIDName && registeredEmail === newEmail) {
+		showErrorMessage("변경된 정보가 없습니다.", "error");
+		return;
+	}
+
+	sendRequestServer(	//url, sendParams, onSuccess, onFail, isDebugMode);
+		"./../server/maestro/update_maestro_info.php",
+		"maestro_id=" + maestroID + "&maestro_name=" + newMaestroIDName + "&email=" + newEmail,
+
+		(jsonData) => {
+			alert(
+				"마에스트로 계정 정보가 변경되었습니다.\n"
+				+ "아이디 : " + newMaestroIDName + "\n"
+				+ "이메일 : " + newEmail
+			);
+			location.href="main_menu.html";
+		},
+
+		(errorMessage, errorCode) => {
+			isAvailableIDName = false;
+			showErrorMessage(errorMessage);
+		}
+
+	);
+}
+
+function checkPassword() {
+	registeredPassword = $("#prev_password").val();
+	if(registeredPassword.length === 0) {
+		showErrorMessage("현재 암호를 입력해 주세요.", "error");
+		$("#prev_password").focus();
+		return false;
+	}
+
+	newPassword = $("#new_password").val();
+	if(newPassword.length === 0) {
+		showErrorMessage("새로운 암호를 입력해 주세요.", "error");
+		$("#new_password").focus();
+		return;
+	} else if(!accountValidator.isValidMaestroPW(newPassword)) {
+		showErrorMessage(accountValidator.messageForInvalidMaestroPW(newPassword), "error");
+		$("#new_password").focus();
+		$("#new_password").select();
+		return false;
+	}
+
+	newPasswordVerify = $("#new_password_verify").val();
+	if(newPassword !== newPasswordVerify) {
+		showErrorMessage(
+			"[새로운 암호]와 [새로운 암호 확인]의 내용이 일치하지 않습니다.<br/>둘 다 같은 내용으로 다시 한 번 입력해 주세요.",
+			"error"
+		);
+		$("#new_password_verify").focus();
+		return false;
+	}
+
+	if(registeredPassword === newPassword) {
+		showErrorMessage("[새로운 암호]가 현재 암호와 동일합니다.", "error");
+		$("#new_password").focus();
+		$("#new_password").select();
+		return false;
+	}
+
+	return true;
+}
+
+function changeMaestroPassword() {
+	if(!checkPassword())
+		return;
+
+	sendRequestServer(	//url, sendParams, onSuccess, onFail, isDebugMode);
+		"./../server/maestro/update_maestro_password.php",
+		"maestro_id=" + maestroID + "&registered_pw=" + registeredPassword + "&new_pw=" + newPassword,
+
+		(jsonData) => {
+			alert("패스워드가 변경되었습니다.");
+			location.href="main_menu.html";
+		},
+
+		(errorMessage, errorCode) => {
+			showErrorMessage(errorMessage);
+		}
+
+	);
+
 }
 
 </script>
@@ -10,42 +196,85 @@ function changeMaestroInfo() {
 
 <div class="container my-3">
 
+	<div id="message_box">
+	</div>
+
 	<div class="card border-primary">
 		<div class="card-header bg-light"><span class="h4">마에스트로 계정 정보 수정</span></div>
 		<div class="card-body">
 
 			<form class="mx-4">
 				<div class="form-group row">
-					<label for="maestro_name" class="col-sm-2 col-form-label">* 아이디 변경</label>
+					<label for="maestro_id" class="col-sm-2 col-form-label text-primary">* 변경할 아이디</label>
 					<div class="col-sm-6">
-						<input type="text" class="form-control" id="maestro_name" placeholder="아이디 입력">
+						<input type="text" class="form-control" id="maestro_id" placeholder="아이디 입력">
 						<small class="form-text text-muted">4~20 글자. 영문, 숫자만 사용 가능합니다.</small>
 					</div>
 					<div class="col-sm-4">
-						<input type="button" id="id_ckeck" class="btn btn-info" value="중복 체크" onClick="checkMaestroID()" disabled>
+						<input type="button" id="id_ckeck" class="btn btn-warning" value="중복 체크" onClick="checkMaestroIDName()" disabled>
+						<small id="id_ckeck_help" class="form-text text-danger d-none">[중복 체크] 버튼을 눌러주세요.</small>
 					</div>
 				</div>
 
 				<div class="form-group row">
-					<label for="password" class="col-sm-2 col-form-label">* 암호</label>
-					<div class="col-sm-6">
-						<input type="password" class="form-control" id="password" placeholder="Password">
-						<small class="form-text text-muted">4~16 글자. 영문, 숫자만 사용 가능합니다.</small>
-					</div>
-				</div>
-
-				<div class="form-group row">
-					<label for="email" class="col-sm-2 col-form-label">* 이메일</label>
+					<label for="email" class="col-sm-2 col-form-label text-primary">* 변경할 이메일</label>
 					<div class="col-sm-6">
 						<input type="email" class="form-control" id="email" placeholder="name@example.com">
 					</div>
 				</div>
 
 				<div class="mt-5 mb-1 text-danger">위 내용으로 마에스트로 계정 정보를 변경합니다.</div>
-				<button type="button" class="btn btn-danger btn-block btn-lg" onClick="changeMaestroInfo()">변경</button>
+				<button type="button" class="btn btn-primary btn-block btn-lg" onClick="changeMaestroInfo()">변경</button>
 			</form>
 
 		</div>	<!-- card body -->
 
-	</div>
+	</div>	<!-- change maestro info -->
+
+
+
+	<div class="card border-primary my-3">
+		<div class="card-header bg-light"><span class="h4">마에스트로 암호 변경</span></div>
+		<div class="card-body">
+
+			<div id="message_box">
+			</div>
+
+			<form class="mx-4">
+				<div class="form-group row">
+					<label for="prev_password" class="col-sm-2 col-form-label">* 현재 암호</label>
+					<div class="col-sm-6">
+						<input type="password" class="form-control" id="prev_password" placeholder="Password">
+						<small class="form-text text-muted">기존에 사용하던 암호를 입력하세요.</small>
+					</div>
+				</div>
+			</form>
+
+			<hr class="mx-3 mb-4"/>
+
+			<form class="mx-4">
+				<div class="form-group row">
+					<label for="new_password" class="col-sm-2 col-form-label text-primary">* 새로운 암호</label>
+					<div class="col-sm-6">
+						<input type="password" class="form-control" id="new_password" placeholder="Password">
+						<small class="form-text text-muted">4~16 글자. 영문, 숫자만 사용 가능합니다.</small>
+					</div>
+				</div>
+
+				<div class="form-group row">
+					<label for="new_password_verify" class="col-sm-2 col-form-label text-primary">* 새로운 암호 확인</label>
+					<div class="col-sm-6">
+						<input type="password" class="form-control" id="new_password_verify" placeholder="Password">
+						<small class="form-text text-muted">위에 입력한 암호를 다시 한 번 정확히 입력하세요.</small>
+					</div>
+				</div>
+
+				<div class="mt-5 mb-1 text-danger">위 내용으로 마에스트로 암호를 변경합니다.</div>
+				<button type="button" class="btn btn-primary btn-block btn-lg" onClick="changeMaestroPassword()">변경</button>
+			</form>
+
+		</div>	<!-- card body -->
+
+	</div>	<!-- change password -->
+
 </div>	<!-- container -->
\ No newline at end of file
diff --git a/src/web/server/maestro/maestro_info.php b/src/web/server/maestro/maestro_info.php
index 3507ddf..29fea0d 100644
--- a/src/web/server/maestro/maestro_info.php
+++ b/src/web/server/maestro/maestro_info.php
@@ -15,6 +15,7 @@ if($info === null) {
 }
 
 set_data("name", $info["name"]);
+set_data("email", $info["email"]);
 set_data("accountType", $info["accountType"]);
 set_data("playerCount", $info["playerCount"]);
 send_result_success();
@@ -25,19 +26,20 @@ function get_maestro_info($maestroID) {
 	global $db_conn;
 
 	$query = "
-		SELECT Name, AccountType, PlayerCount
+		SELECT Name, Email, AccountType, PlayerCount
 		FROM moty_maestro
 		WHERE MaestroID = ?
 	";
 	$stmt = $db_conn->prepare($query);
 	$stmt->bind_param("s", $maestroID);
 	$stmt->execute();
-	$stmt->bind_result($name, $accountType, $playerCount);
+	$stmt->bind_result($name, $email, $accountType, $playerCount);
 	// while($stmt->fetch())
 	$stmt->fetch();
 	$stmt->close();
 
 	$info["name"] = $name;
+	$info["email"] = $email;
 	$info["accountType"] = $accountType;
 	$info["playerCount"] = $playerCount;
 
diff --git a/src/web/server/maestro/update_maestro_info.php b/src/web/server/maestro/update_maestro_info.php
new file mode 100644
index 0000000..b0d5478
--- /dev/null
+++ b/src/web/server/maestro/update_maestro_info.php
@@ -0,0 +1,31 @@
+<?php
+header("Content-Type: application/json");
+
+include "./../lib/send_reply_json.php";
+include "./../setup/connect_db.php";
+
+$maestroID = $_POST["maestro_id"];
+$maestroName = $_POST["maestro_name"];
+$email = $_POST["email"];
+
+
+update_maestro_info($maestroID, $maestroName, $email);
+
+send_result_success();
+exit;
+
+
+function update_maestro_info($maestroID, $maestroName, $email) {
+	global $db_conn;
+
+	$query = "
+		UPDATE moty_maestro
+		SET Name = ?, Email = ?
+		WHERE MaestroID = ?
+	";
+	$stmt = $db_conn->prepare($query);
+	$stmt->bind_param("ssi", $maestroName, $email, $maestroID);
+	$stmt->execute();
+}
+
+?>
\ No newline at end of file
diff --git a/src/web/server/maestro/update_maestro_password.php b/src/web/server/maestro/update_maestro_password.php
new file mode 100644
index 0000000..38387f3
--- /dev/null
+++ b/src/web/server/maestro/update_maestro_password.php
@@ -0,0 +1,57 @@
+<?php
+header("Content-Type: application/json");
+
+include "./../lib/send_reply_json.php";
+include "./../setup/connect_db.php";
+
+$maestroID = $_POST["maestro_id"];
+$registeredPW = $_POST["registered_pw"];
+$newPW = $_POST["new_pw"];
+
+
+$countResult = maestro_registered_password($maestroID, $registeredPW);
+if($countResult === null || $countResult < 1) {
+	set_error_message("입력하신 [현재 암호]가 맞지 않습니다.");
+	send_result_fail();
+	exit;
+}
+
+update_maestro_password($maestroID, $newPW);
+
+send_result_success();
+exit;
+
+
+function maestro_registered_password($maestro_id, $registeredPW) {
+	global $db_conn;
+
+	$query = "
+		SELECT COUNT(MaestroID)
+		FROM moty_maestro
+		WHERE MaestroID = ? AND Password = PASSWORD(?)
+	";
+	$stmt = $db_conn->prepare($query);
+	$stmt->bind_param("is", $maestro_id, $registeredPW);
+	$stmt->execute();
+	$stmt->bind_result($countResult);
+	// while($stmt->fetch())
+	$stmt->fetch();
+	$stmt->close();
+
+	return $countResult;
+}
+
+function update_maestro_password($maestroID, $newPW) {
+	global $db_conn;
+
+	$query = "
+		UPDATE moty_maestro
+		SET Password = PASSWORD(?)
+		WHERE MaestroID = ?
+	";
+	$stmt = $db_conn->prepare($query);
+	$stmt->bind_param("si", $newPW, $maestroID);
+	$stmt->execute();
+}
+
+?>
\ No newline at end of file