diff --git a/src/main/java/com/example/rhizome/app/presentation/controller/UpdateDepartmentController.java b/src/main/java/com/example/rhizome/app/presentation/controller/UpdateDepartmentController.java
index 4cf8892..2848285 100644
--- a/src/main/java/com/example/rhizome/app/presentation/controller/UpdateDepartmentController.java
+++ b/src/main/java/com/example/rhizome/app/presentation/controller/UpdateDepartmentController.java
@@ -67,7 +67,7 @@ public class UpdateDepartmentController {
 				return "forward:" + TransitionTargetPageNameKeyword.SELECT_DEPARTMENT_INFO;
 			}
 			// 更新画面に遷移
-			model.addAttribute(PageReturnAttributeKeyword.UPDATE_DEPARTMENT_FORM,
+			model.addAttribute(PageReturnAttributeKeyword.UPDATE_DEPARTMENT_INFO_FORM,
 					UpdateDepartmentForm.convertFrom(departmentList.get(0)));
 
 			// Update画面に遷移
@@ -104,7 +104,7 @@ public class UpdateDepartmentController {
 			List<Department> departmentList = searchDepartment
 					.searchBy(new com.example.rhizome.app.domain.model.SearchConditionDepartment(null,
 							updateDepartmentForm.getNmDepartment()));
-			if (departmentList == null) {
+			if (departmentList == null && departmentList.isEmpty()){
 				model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR,
 						new MessageForm(DUPLICATION));
 				return TransitionTargetPageNameKeyword.UPDATE_DEPARTMENT_INPUT_HTML;
@@ -112,17 +112,17 @@ public class UpdateDepartmentController {
 			List<Department> departmentList2 = searchDepartment
 					.searchBy(new com.example.rhizome.app.domain.model.SearchConditionDepartment(
 							updateDepartmentForm.getIdDepartment(), null));
-			if (departmentList2 == null) {
+			if (departmentList2 == null || departmentList2.isEmpty()) {
 				model.addAttribute(PageReturnAttributeKeyword.MESSAGE_ERROR,
 						new MessageForm(NO_TARGET));
-				return PageReturnAttributeKeyword.UPDATE_DEPARTMENT_FORM;
+				return PageReturnAttributeKeyword.UPDATE_DEPARTMENT_INFO_FORM;
 			}
 			Department department = new Department(updateDepartmentForm.getIdDepartment(),
 					updateDepartmentForm.getNmDepartment());
 			updateDepartment.updateDepartment(department);
 			model.addAttribute(PageReturnAttributeKeyword.MESSAGE_INFO,
 					new MessageForm(UPDATE_COMPLETE));
-			return PageReturnAttributeKeyword.UPDATE_DEPARTMENT_FORM;
+			return PageReturnAttributeKeyword.UPDATE_DEPARTMENT_INFO_FORM;
 		} catch (Exception e) {
 			// ログイン情報の破棄
 			httpSession.invalidate();
diff --git a/src/main/java/com/example/rhizome/app/presentation/controller/pageproperty/PageReturnAttributeKeyword.java b/src/main/java/com/example/rhizome/app/presentation/controller/pageproperty/PageReturnAttributeKeyword.java
index 2c6e4ed..6dd3584 100644
--- a/src/main/java/com/example/rhizome/app/presentation/controller/pageproperty/PageReturnAttributeKeyword.java
+++ b/src/main/java/com/example/rhizome/app/presentation/controller/pageproperty/PageReturnAttributeKeyword.java
@@ -14,6 +14,6 @@ public class PageReturnAttributeKeyword {
     public static final String LOGIN_INFO_FORM = "loginInfoForm";
     public static final String UPDATE_PERSONAL_EMPLOYEE_USER_FORM = "updatePersonalEmployeeUserForm";
     public static final String EMPLOYEE_INFO_FORM_LIST = "employeeInfoFormList";
-	public static final String UPDATE_DEPARTMENT_FORM = "updateDepartmentForm";
+	public static final String UPDATE_DEPARTMENT_INFO_FORM = "updateDepartmentForm";
 
 }
diff --git a/src/main/resources/templates/updateDepartment.html b/src/main/resources/templates/updateDepartmentForm.html
similarity index 64%
rename from src/main/resources/templates/updateDepartment.html
rename to src/main/resources/templates/updateDepartmentForm.html
index 4243093..668c4b7 100644
--- a/src/main/resources/templates/updateDepartment.html
+++ b/src/main/resources/templates/updateDepartmentForm.html
@@ -20,7 +20,7 @@
 			<button class="logoutButton" onclick="logoutSubmit()">ログアウト</button>
 		</div>
 	</h1>
-	<form action="updateDepartmentResult" method="post" onsubmit="return confirm('本当によろしいですか？');"
+	<form action="/updateDepartmentResult" method="post" onsubmit="return confirm('本当によろしいですか？');"
 		th:object="${updateDepartmentForm}">
 
 		<div class="msgBox error" th:if="${messageError != null}">
@@ -45,15 +45,26 @@
 			</tr>
 		</table>
 	</form>
-	<a href="javascript:selectDepartmentSubmit()">一覧に戻る</a>
+	<a href="javascript:selectSubmit()">一覧に戻る</a>
 </body>
-	<script type="text/javascript">
-		function selectDepartmentSubmit() {
-			const form = document.createElement('form');
-			form.setAttribute('method', 'post');
-			form.setAttribute('action', 'selectDepartment');
-			document.body.appendChild(form);
-			form.submit();
+	<script>
+		function selectSubmit() {
+				const form = document.createElement('form');
+				form.setAttribute('method', 'post');
+				form.setAttribute('action', 'departmentAll');
+
+				// 動的送信用のHidden
+				// 動的にFormを作成する場合は何かしら送信しないと、正しく動作しない
+				const inputField = document.createElement("input");
+				inputField.setAttribute("type", "hidden");
+				inputField.setAttribute("value", "departmentAll");
+
+				form.appendChild(inputField);
+
+				// フォームをDOMに追加
+				document.body.appendChild(form);
+
+				form.submit();
 		}
 	</script>
 
diff --git a/src/main/resources/templates/updateDepartmentInput.html b/src/main/resources/templates/updateDepartmentInput.html
new file mode 100644
index 0000000..668c4b7
--- /dev/null
+++ b/src/main/resources/templates/updateDepartmentInput.html
@@ -0,0 +1,71 @@
+<!DOCTYPE html>
+<html xmlns:th="http://www.thymeleaf.org">
+
+<head>
+
+	<meta content="text/html; charset=UTF-8" http-equiv="Content-Type">
+	<!-- 外部のスクリプトファイルを読み込む -->
+	<script th:src="@{/js/common.js}"></script>
+	<!-- CSSの読み込み -->
+	<link rel="stylesheet" th:href="@{/css/all.css}">
+	<link rel=stylesheet th:href="@{/css/style.css}" type="text/css">
+	<title>部署情報更新</title>
+</head>
+
+<body>
+	<h1>
+		部署情報更新　　　
+		<div class="rightSection">
+			<span class="loginInfo">ログイン者名：<span th:text="${session.loginUser.nmEmployee}"></span></span>
+			<button class="logoutButton" onclick="logoutSubmit()">ログアウト</button>
+		</div>
+	</h1>
+	<form action="/updateDepartmentResult" method="post" onsubmit="return confirm('本当によろしいですか？');"
+		th:object="${updateDepartmentForm}">
+
+		<div class="msgBox error" th:if="${messageError != null}">
+			<span class="error" th:text="${messageError.message}"></span>
+		</div>
+		<table>
+			<tr>
+				<th class="header">部署ID</th>
+				<td>
+					<input class="readOnly" readonly="readonly" th:field="*{idDepartment}" type="text" />
+				</td>
+			</tr>
+			<tr>
+				<th class="header">部署名</th>
+				<td>
+					<input maxlength="50" placeholder="部署名" required="required" th:field="*{nmDepartment}"
+						type="text" />
+				</td>
+			</tr>
+			<tr>
+				<td class="btnArea" colspan="2"><input type="submit" value="更新" /></td>
+			</tr>
+		</table>
+	</form>
+	<a href="javascript:selectSubmit()">一覧に戻る</a>
+</body>
+	<script>
+		function selectSubmit() {
+				const form = document.createElement('form');
+				form.setAttribute('method', 'post');
+				form.setAttribute('action', 'departmentAll');
+
+				// 動的送信用のHidden
+				// 動的にFormを作成する場合は何かしら送信しないと、正しく動作しない
+				const inputField = document.createElement("input");
+				inputField.setAttribute("type", "hidden");
+				inputField.setAttribute("value", "departmentAll");
+
+				form.appendChild(inputField);
+
+				// フォームをDOMに追加
+				document.body.appendChild(form);
+
+				form.submit();
+		}
+	</script>
+
+</html>
\ No newline at end of file