diff --git a/packages/vite/src/node/plugins/importAnalysis.ts b/packages/vite/src/node/plugins/importAnalysis.ts
index 4c940aa109b00a..6d758e04cd807c 100644
--- a/packages/vite/src/node/plugins/importAnalysis.ts
+++ b/packages/vite/src/node/plugins/importAnalysis.ts
@@ -40,7 +40,6 @@ import {
   joinUrlSegments,
   moduleListContains,
   normalizePath,
-  partialEncodeURIPath,
   prettifyUrl,
   removeImportQuery,
   removeTimestampQuery,
@@ -594,9 +593,7 @@ export function importAnalysisPlugin(config: ResolvedConfig): Plugin {
                 rewriteDone = true
               }
               if (!rewriteDone) {
-                const rewrittenUrl = JSON.stringify(
-                  ssr ? url : partialEncodeURIPath(url),
-                )
+                const rewrittenUrl = JSON.stringify(url)
                 const s = isDynamicImport ? start : start - 1
                 const e = isDynamicImport ? end : end + 1
                 str().overwrite(s, e, rewrittenUrl, {
diff --git a/playground/assets/__tests__/assets.spec.ts b/playground/assets/__tests__/assets.spec.ts
index 6fb337a9484bb6..fb00f0ac2041f8 100644
--- a/playground/assets/__tests__/assets.spec.ts
+++ b/playground/assets/__tests__/assets.spec.ts
@@ -369,11 +369,11 @@ test('?url import on css', async () => {
 
 describe('unicode url', () => {
   test('from js import', async () => {
-    const src = readFile('テスト-測試-white space%.js')
+    const src = readFile('テスト-測試-white space.js')
     expect(await page.textContent('.unicode-url')).toMatch(
       isBuild
         ? `data:text/javascript;base64,${Buffer.from(src).toString('base64')}`
-        : encodeURI(`/foo/bar/テスト-測試-white space%.js`),
+        : encodeURI(`/foo/bar/テスト-測試-white space.js`),
     )
   })
 })
diff --git a/playground/assets/asset/percent%.png b/playground/assets/asset/percent%.png
new file mode 100644
index 00000000000000..628bbd479129c0
Binary files /dev/null and b/playground/assets/asset/percent%.png differ
diff --git a/playground/assets/index.html b/playground/assets/index.html
index 80fbf14be8bc59..3180f2c966c00c 100644
--- a/playground/assets/index.html
+++ b/playground/assets/index.html
@@ -135,7 +135,7 @@ <h2>CSS url references</h2>
 <h2>Unicode URL</h2>
 <div>
   <code class="unicode-url"></code>
-  <img src="./nested/テスト-測試-white space%25.png" />
+  <img src="./nested/テスト-測試-white space.png" />
 </div>
 
 <h2>Filename including single quote</h2>
@@ -143,11 +143,17 @@ <h2>Filename including single quote</h2>
   <code class="filename-including-single-quote"></code>
 </div>
 
+<h2>Filename including percent</h2>
+<div>
+  <code class="percent-url"></code>
+  <img src="./asset/percent%25.png" />
+</div>
+
 <h2>encodeURI for the address</h2>
 <div>
   <img
     class="encodeURI"
-    src="./nested/%E3%83%86%E3%82%B9%E3%83%88-%E6%B8%AC%E8%A9%A6-white%20space%25.png"
+    src="./nested/%E3%83%86%E3%82%B9%E3%83%88-%E6%B8%AC%E8%A9%A6-white%20space.png"
   />
 </div>
 
@@ -442,12 +448,16 @@ <h3>assets in noscript</h3>
   import fooUrl from './foo.js?url'
   text('.url', fooUrl)
 
-  import unicodeUrl from './テスト-測試-white space%.js?url'
+  import unicodeUrl from './テスト-測試-white space.js?url'
   text('.unicode-url', unicodeUrl)
 
   import filenameIncludingSingleQuoteUrl from "./nested/with-single'quote.png"
   text('.filename-including-single-quote', filenameIncludingSingleQuoteUrl)
 
+  // TODO: is not supported yet (https://github.com/vitejs/vite/pull/16243)
+  // import percentUrl from './asset/percent%25.png?url'
+  // text('.percent-url', percentUrl)
+
   import cssUrl from './css/icons.css?url'
   text('.url-css', cssUrl)
 
diff --git "a/playground/assets/nested/\343\203\206\343\202\271\343\203\210-\346\270\254\350\251\246-white space%.png" "b/playground/assets/nested/\343\203\206\343\202\271\343\203\210-\346\270\254\350\251\246-white space.png"
similarity index 100%
rename from "playground/assets/nested/\343\203\206\343\202\271\343\203\210-\346\270\254\350\251\246-white space%.png"
rename to "playground/assets/nested/\343\203\206\343\202\271\343\203\210-\346\270\254\350\251\246-white space.png"
diff --git "a/playground/assets/\343\203\206\343\202\271\343\203\210-\346\270\254\350\251\246-white space%.js" "b/playground/assets/\343\203\206\343\202\271\343\203\210-\346\270\254\350\251\246-white space.js"
similarity index 100%
rename from "playground/assets/\343\203\206\343\202\271\343\203\210-\346\270\254\350\251\246-white space%.js"
rename to "playground/assets/\343\203\206\343\202\271\343\203\210-\346\270\254\350\251\246-white space.js"