diff --git a/portal-ui/src/components/VideoComposeCard.vue b/portal-ui/src/components/VideoComposeCard.vue
index 47bde21..85425c4 100644
--- a/portal-ui/src/components/VideoComposeCard.vue
+++ b/portal-ui/src/components/VideoComposeCard.vue
@@ -235,6 +235,42 @@
 			</label>
 		</div>
 	</a-modal>
+	<a-modal
+		v-model:visible="createAssetDialogVisible"
+		title="新增素材"
+		:footer="false"
+		:mask-closable="false"
+		width="680px">
+		<div class="vg-create-asset-block">
+			<div class="vg-create-asset-type">
+				<span class="vg-create-asset-type-label">类型选择：</span>
+				<a-radio-group v-model="createAssetMediaType" type="button" @change="onCreateAssetTypeChange">
+					<a-radio value="image">图片</a-radio>
+					<a-radio value="video">视频</a-radio>
+					<a-radio value="audio">音频</a-radio>
+				</a-radio-group>
+			</div>
+			<div class="vg-create-asset-label">添加素材，拖拽或者点击上传</div>
+			<a-upload
+				:key="createAssetUploaderKey"
+				draggable
+				multiple
+				:accept="uploadAcceptByType(createAssetMediaType)"
+				:custom-request="customCreateAssetRequest"
+				:show-file-list="true"
+				@change="onCreateAssetUploadChange" />
+			<div class="vg-create-asset-actions">
+				<a-button
+					type="primary"
+					:loading="createAssetSubmitting"
+					:disabled="!createAssetPendingUrls.length"
+					@click="submitCreateAssetModeration">
+					提交审核
+				</a-button>
+				<a-button @click="cancelCreateAssetDialog">取消</a-button>
+			</div>
+		</div>
+	</a-modal>
 	</div>
 </template>
 
@@ -348,6 +384,11 @@ const assetLoading = ref(false)
 const assetPickerVisible = ref(false)
 const assetQueryResults = ref([])
 const assetPickerSelectedKeys = ref([])
+const createAssetDialogVisible = ref(false)
+const createAssetMediaType = ref('image')
+const createAssetUploaderKey = ref(0)
+const createAssetPendingUrls = ref([])
+const createAssetSubmitting = ref(false)
 /** 参考图区拖拽高亮（嵌套 dragenter/leave 计数） */
 const referenceDragDepth = ref(0)
 /** 仅「上传资产」按钮为 true；左侧直接上传/拖拽/粘贴为 false */
@@ -429,9 +470,9 @@ const openReferenceDirectUpload = () => {
 
 /** 仅「上传资产」：/api/cos/upload(pathPrefix=asset) + /api/tos/asset，与三方素材管理一致 */
 const openFilePickerForAssetUpload = () => {
-	createAssetIntent.value = true
-	currentUploadIndex.value = -1
-	fileInputRef.value?.click()
+	createAssetMediaType.value = 'image'
+	clearCreateAssetUploads()
+	createAssetDialogVisible.value = true
 }
 
 const openFilePicker = () => {
@@ -449,6 +490,100 @@ const openFilePickerFor = (index) => {
 	fileInputRef.value?.click()
 }
 
+const uploadAcceptByType = (mediaType) => {
+	if (mediaType === 'audio') return 'audio/*'
+	if (mediaType === 'video') return 'video/*'
+	return 'image/*'
+}
+
+const mediaDataKeyByType = (mediaType) => {
+	if (mediaType === 'audio') return 'audios'
+	if (mediaType === 'video') return 'videos'
+	return 'images'
+}
+
+const clearCreateAssetUploads = () => {
+	createAssetPendingUrls.value = []
+	createAssetUploaderKey.value += 1
+}
+
+const onCreateAssetTypeChange = () => {
+	clearCreateAssetUploads()
+}
+
+const cancelCreateAssetDialog = () => {
+	clearCreateAssetUploads()
+	createAssetDialogVisible.value = false
+}
+
+const customCreateAssetRequest = async (option) => {
+	const { onProgress, onError, onSuccess, fileItem } = option || {}
+	try {
+		const form = new FormData()
+		form.append('file', fileItem.file)
+		form.append('pathPrefix', 'asset')
+		const res = await request({
+			url: 'api/cos/upload',
+			method: 'post',
+			data: form,
+			headers: {
+				'Content-Type': 'multipart/form-data;boundary=' + new Date().getTime()
+			},
+			onUploadProgress: (evt) => {
+				if (evt.total && onProgress) onProgress(evt.loaded / evt.total, evt)
+			}
+		})
+		if (res && res.code === 200 && res.url) {
+			createAssetPendingUrls.value.push(res.url)
+			if (onSuccess) onSuccess(res)
+		} else {
+			const msg = (res && res.msg) || '上传失败'
+			throw new Error(msg)
+		}
+	} catch (err) {
+		const msg = err?.message || '上传失败'
+		Message.error(msg)
+		if (onError) onError(err)
+	}
+}
+
+const onCreateAssetUploadChange = (_list, fileItem) => {
+	const st = fileItem && fileItem.status
+	if (st === 'removed' && fileItem.response && fileItem.response.url) {
+		const u = fileItem.response.url
+		const idx = createAssetPendingUrls.value.findIndex((x) => x === u)
+		if (idx >= 0) createAssetPendingUrls.value.splice(idx, 1)
+	}
+}
+
+const submitCreateAssetModeration = async () => {
+	if (!createAssetPendingUrls.value.length) {
+		Message.warning('请先上传素材')
+		return
+	}
+	const payload = {
+		[mediaDataKeyByType(createAssetMediaType.value)]: [...createAssetPendingUrls.value]
+	}
+	createAssetSubmitting.value = true
+	try {
+		const res = await request({
+			url: 'api/tos/asset',
+			method: 'post',
+			data: payload
+		})
+		if (res.code !== 200) {
+			throw new Error(res.msg || '提交失败')
+		}
+		Message.success('已提交审核')
+		clearCreateAssetUploads()
+		createAssetDialogVisible.value = false
+	} catch (err) {
+		Message.error(err?.message || '提交失败')
+	} finally {
+		createAssetSubmitting.value = false
+	}
+}
+
 	const acceptAttr = computed(() => {
 		const types = new Set(props.allowedMediaTypes || [])
 		const hasI = types.has('image')
@@ -1972,6 +2107,35 @@ defineExpose({
 	padding: 8px 0;
 }
 
+.vg-create-asset-block {
+	padding: 2px 0;
+}
+
+.vg-create-asset-type {
+	display: flex;
+	align-items: center;
+	gap: 10px;
+	margin-bottom: 12px;
+}
+
+.vg-create-asset-type-label {
+	color: rgba(255, 255, 255, 0.85);
+	font-size: 13px;
+}
+
+.vg-create-asset-label {
+	margin-bottom: 10px;
+	color: rgba(255, 255, 255, 0.75);
+	font-size: 14px;
+}
+
+.vg-create-asset-actions {
+	margin-top: 14px;
+	display: flex;
+	gap: 12px;
+	flex-wrap: wrap;
+}
+
 .hidden-input {
 	display: none;
 }
diff --git a/portal-ui/src/views/ThirdPartyAsset.vue b/portal-ui/src/views/ThirdPartyAsset.vue
index bf92e63..429b4b1 100644
--- a/portal-ui/src/views/ThirdPartyAsset.vue
+++ b/portal-ui/src/views/ThirdPartyAsset.vue
@@ -302,6 +302,7 @@ export default {
 <style lang="less" scoped>
 .tpa-page {
 	padding: 20px;
+	width: 100%;
 	min-height: 100%;
 	box-sizing: border-box;
 }