diff --git a/src/renderer/index.html b/src/renderer/index.html
index 96ed881..2a16674 100644
--- a/src/renderer/index.html
+++ b/src/renderer/index.html
@@ -92,6 +92,19 @@
   </div>
 </div>
 
+<div id="rename-confirm-modal" class="modal-overlay" style="display:none;">
+  <div class="modal-box modal-box-with-title">
+    <div class="modal-titlebar" id="rename-confirm-title"></div>
+    <p class="modal-msg" id="rename-confirm-msg"></p>
+    <ul id="rename-confirm-list" class="modal-conflict-list modal-preview-list"></ul>
+	  <p class="modal-warning" id="rename-confirm-selection-warning" style="display:none;">선택된 파일들만 저장합니다</p>
+    <div class="modal-actions">
+      <button id="rename-confirm-cancel" class="btn btn-ghost">취소</button>
+      <button id="rename-confirm-ok" class="btn btn-success">실행</button>
+    </div>
+  </div>
+</div>
+
 <div id="rename-conflict-modal" class="modal-overlay" style="display:none;">
   <div class="modal-box">
     <p class="modal-msg">변경할 이름의 파일이 이미 존재합니다.</p>
diff --git a/src/renderer/rename.js b/src/renderer/rename.js
index 1354f0d..63a473f 100644
--- a/src/renderer/rename.js
+++ b/src/renderer/rename.js
@@ -5,10 +5,27 @@ import * as history                                      from './history.js';
 
 const inputPrefix            = document.getElementById('input-prefix');
 const inputDigits            = document.getElementById('input-digits');
+const renameConfirmModal     = document.getElementById('rename-confirm-modal');
+const renameConfirmTitle     = document.getElementById('rename-confirm-title');
+const renameConfirmMsg       = document.getElementById('rename-confirm-msg');
+const renameConfirmWarning   = document.getElementById('rename-confirm-selection-warning');
+const renameConfirmList      = document.getElementById('rename-confirm-list');
+const renameConfirmCancelBtn = document.getElementById('rename-confirm-cancel');
+const renameConfirmOkBtn     = document.getElementById('rename-confirm-ok');
 const renameConflictModal    = document.getElementById('rename-conflict-modal');
 const renameConflictCloseBtn = document.getElementById('rename-conflict-close');
 const renameConflictList     = document.getElementById('rename-conflict-list');
 
+let _renameConfirmResolve = null;
+
+renameConfirmCancelBtn.addEventListener('click', () => {
+  closeRenameConfirm(false);
+});
+
+renameConfirmOkBtn.addEventListener('click', () => {
+  closeRenameConfirm(true);
+});
+
 renameConflictCloseBtn.addEventListener('click', () => {
   renameConflictModal.style.display = 'none';
 });
@@ -49,10 +66,16 @@ export async function doRename() {
   const examples = filesToRename.slice(0, 3).map((f, i) => {
     const ext = f.name.split('.').pop().toLowerCase();
     return `${f.name}  →  ${prefix}_${String(i + 1).padStart(digits, '0')}.${ext}`;
-  }).join('\n');
-  const more = filesToRename.length > 3 ? `\n... 외 ${filesToRename.length - 3}개` : '';
+  });
+  const more = filesToRename.length > 3 ? `... 외 ${filesToRename.length - 3}개` : '';
 
-  if (!confirm(`📂 ${filesToRename.length}개 파일을 이름 변경합니다:\n\n${examples}${more}\n\n계속하시겠습니까?`)) return;
+  const confirmed = await showRenameConfirm({
+    count: filesToRename.length,
+    examples,
+    more,
+    isPartial: selectedArr.length > 0,
+  });
+  if (!confirmed) return;
 
   showLoading('파일 이름 변경 중...');
   setStatus('이름 변경 중...', false);
@@ -83,3 +106,32 @@ export async function doRename() {
     alert('오류 발생: ' + e.message);
   }
 }
+
+function showRenameConfirm({ count, examples, more, isPartial }) {
+  renameConfirmTitle.textContent = isPartial ? '선택된 이미지 저장' : '전체 이미지 저장';
+  renameConfirmMsg.textContent = `${count}개 파일을 이름 변경합니다. 계속하시겠습니까?`;
+  renameConfirmWarning.style.display = isPartial ? 'block' : 'none';
+
+  const items = [...examples];
+  if (more) items.push(more);
+  renameConfirmList.replaceChildren(...items.map(text => {
+    const li = document.createElement('li');
+    li.textContent = text;
+    return li;
+  }));
+
+  renameConfirmModal.style.display = 'flex';
+  renameConfirmOkBtn.focus();
+
+  return new Promise(resolve => {
+    _renameConfirmResolve = resolve;
+  });
+}
+
+function closeRenameConfirm(confirmed) {
+  renameConfirmModal.style.display = 'none';
+  if (_renameConfirmResolve) {
+    _renameConfirmResolve(confirmed);
+    _renameConfirmResolve = null;
+  }
+}
diff --git a/src/renderer/style.css b/src/renderer/style.css
index 47f4e74..b502d8d 100644
--- a/src/renderer/style.css
+++ b/src/renderer/style.css
@@ -535,9 +535,32 @@ footer span { font-size: 11px; color: var(--muted); }
   display: flex; flex-direction: column; gap: 20px;
   box-shadow: 0 24px 60px rgba(0,0,0,.6);
 }
+.modal-box-with-title {
+  padding-top: 0;
+}
+.modal-titlebar {
+  margin: 0 -32px;
+  padding: 14px 32px;
+  border-bottom: 1px solid var(--border);
+  border-radius: 14px 14px 0 0;
+  background: var(--card);
+  color: var(--text);
+  font-size: 15px;
+  font-weight: 700;
+}
 .modal-msg {
   font-size: 14px; color: var(--text); line-height: 1.7;
 }
+.modal-warning {
+  font-size: 13px;
+  font-weight: 700;
+  line-height: 1.5;
+  color: var(--warning);
+  background: rgba(247,194,106,.12);
+  border: 1px solid rgba(247,194,106,.35);
+  border-radius: 8px;
+  padding: 9px 12px;
+}
 .modal-fields {
   display: flex; flex-direction: column; gap: 10px;
 }
@@ -564,6 +587,9 @@ footer span { font-size: 11px; color: var(--muted); }
   font-family: 'JetBrains Mono', monospace;
   font-size: 12px; color: var(--warning);
 }
+.modal-preview-list li {
+  color: var(--text);
+}
 .modal-actions {
   display: flex; justify-content: flex-end; gap: 10px;
 }