diff --git a/portal-ui/src/components/VideoComposeCard.vue b/portal-ui/src/components/VideoComposeCard.vue
index 143a4df..e88d935 100644
--- a/portal-ui/src/components/VideoComposeCard.vue
+++ b/portal-ui/src/components/VideoComposeCard.vue
@@ -162,8 +162,8 @@ import { computed, nextTick, onMounted, ref, watch } from 'vue'
 import { Message } from '@arco-design/web-vue'
 import { uploadFile, extractUploadUrlFromResponse, PORTAL_TENCENT_COS_UPLOAD_URL } from '@/utils/file'
 
-/** 图生参考：不同参考图最多 4 张（图1–图4），同一 URL 可多次 @ */
-const MAX_REFERENCE_UNIQUE = 4
+/** 富文本内「不同素材」种类上限（图/视频/音频合计）；同一 URL 可多次 @，提交时 reference_* 去重后最多 9 条 */
+const MAX_REFERENCE_CONTENT_SLOTS = 9
 
 const props = defineProps({
 	modelValue: {
@@ -603,7 +603,7 @@ const getUniqueRefUrlsInDoc = () => {
 	return s
 }
 
-/** 按文档顺序为不同 URL 分配 [图n]/[视频n]/[音频n]，并同步 data-token / 展示 */
+/** 按文档顺序为不同 URL 分配 [图n]/[视频n]/[音频n]；不同素材合计最多 MAX_REFERENCE_CONTENT_SLOTS，同 URL 复用同一序号 */
 const renumberAllReferenceMentions = () => {
 	if (!editorRef.value || !isReference.value) return
 	const refs = Array.from(editorRef.value.querySelectorAll('.vg-inline-ref[data-mention-reference="1"]'))
@@ -613,6 +613,7 @@ const renumberAllReferenceMentions = () => {
 	let imgNext = 1
 	let vidNext = 1
 	let audNext = 1
+	let globalDistinct = 0
 	let droppedExtra = false
 	for (const el of refs) {
 		const u = el.getAttribute('data-reference-url') || ''
@@ -624,31 +625,34 @@ const renumberAllReferenceMentions = () => {
 		let token = ''
 		if (kind === 'video') {
 			if (!vidMap.has(u)) {
-				if (vidNext > MAX_REFERENCE_UNIQUE) {
+				if (globalDistinct >= MAX_REFERENCE_CONTENT_SLOTS) {
 					el.remove()
 					droppedExtra = true
 					continue
 				}
+				globalDistinct++
 				vidMap.set(u, vidNext++)
 			}
 			token = `[视频${vidMap.get(u)}]`
 		} else if (kind === 'audio') {
 			if (!audMap.has(u)) {
-				if (audNext > MAX_REFERENCE_UNIQUE) {
+				if (globalDistinct >= MAX_REFERENCE_CONTENT_SLOTS) {
 					el.remove()
 					droppedExtra = true
 					continue
 				}
+				globalDistinct++
 				audMap.set(u, audNext++)
 			}
 			token = `[音频${audMap.get(u)}]`
 		} else {
 			if (!imgMap.has(u)) {
-				if (imgNext > MAX_REFERENCE_UNIQUE) {
+				if (globalDistinct >= MAX_REFERENCE_CONTENT_SLOTS) {
 					el.remove()
 					droppedExtra = true
 					continue
 				}
+				globalDistinct++
 				imgMap.set(u, imgNext++)
 			}
 			token = `[图${imgMap.get(u)}]`
@@ -658,7 +662,7 @@ const renumberAllReferenceMentions = () => {
 		if (imgEl) imgEl.setAttribute('alt', token)
 	}
 	if (droppedExtra) {
-		Message.warning(`每类参考最多 ${MAX_REFERENCE_UNIQUE} 个不同素材，已移除多余引用`)
+		Message.warning(`富文本内不同素材最多 ${MAX_REFERENCE_CONTENT_SLOTS} 个（图/视频/音频合计），已移除多余引用`)
 	}
 }
 
@@ -697,21 +701,30 @@ const collectReferenceMentionsInDocOrder = () => {
 }
 
 /**
- * 参考图模式提交用：首条 text；其后按文中 [图n]/[视频n]/[音频n] 顺序对应各 reference_*。
+ * 参考图模式提交用：首条 text；其后为 reference_*。
+ * 文中多次出现同一 [图n]/[视频n]/[音频n]（同一 URL）时，只输出一条记录（按文中首次出现顺序），最多 9 条。
  */
 const getImageReferenceContentItems = () => {
 	const text = getEditorPlainText()
 	const first = { type: 'text', text: text || '' }
 	const mentions = collectReferenceMentionsInDocOrder()
-	const rest = mentions.map(({ url, kind }) => {
+	const seen = new Set()
+	const rest = []
+	for (const { url, kind } of mentions) {
+		const u = String(url || '').trim()
+		if (!u) continue
+		const key = `${kind}::${u}`
+		if (seen.has(key)) continue
+		seen.add(key)
+		if (rest.length >= MAX_REFERENCE_CONTENT_SLOTS) break
 		if (kind === 'video') {
-			return { type: 'video_url', video_url: { url }, role: 'reference_video' }
+			rest.push({ type: 'video_url', video_url: { url: u }, role: 'reference_video' })
+		} else if (kind === 'audio') {
+			rest.push({ type: 'audio_url', audio_url: { url: u }, role: 'reference_audio' })
+		} else {
+			rest.push({ type: 'image_url', image_url: { url: u }, role: 'reference_image' })
 		}
-		if (kind === 'audio') {
-			return { type: 'audio_url', audio_url: { url }, role: 'reference_audio' }
-		}
-		return { type: 'image_url', image_url: { url }, role: 'reference_image' }
-	})
+	}
 	return [first, ...rest]
 }
 
@@ -1001,15 +1014,17 @@ const applyReferenceFromHistory = ({ text, contentItems }) => {
 const selectMentionItem = (item) => {
 	if (!item?.url || !editorRef.value) return
 	const kind = item.mediaType === 'video' ? 'video' : item.mediaType === 'audio' ? 'audio' : 'image'
-	const uniqueByKind = { image: new Set(), video: new Set(), audio: new Set() }
+	const refSlotKey = `${kind}::${item.url}`
+	const keysInDoc = new Set()
 	editorRef.value.querySelectorAll('.vg-inline-ref[data-mention-reference="1"]').forEach((el) => {
 		const u = el.getAttribute('data-reference-url')
 		const k = el.getAttribute('data-reference-kind') || 'image'
-		if (u) uniqueByKind[k]?.add(u)
+		if (u) keysInDoc.add(`${k}::${u}`)
 	})
-	const keySet = uniqueByKind[kind] || uniqueByKind.image
-	if (!keySet.has(item.url) && keySet.size >= MAX_REFERENCE_UNIQUE) {
-		Message.warning(`该类型最多 ${MAX_REFERENCE_UNIQUE} 个不同素材`)
+	if (!keysInDoc.has(refSlotKey) && keysInDoc.size >= MAX_REFERENCE_CONTENT_SLOTS) {
+		Message.warning(
+			`富文本内不同素材最多 ${MAX_REFERENCE_CONTENT_SLOTS} 个（图/视频/音频合计），同一素材可重复插入`
+		)
 		mentionVisible.value = false
 		return
 	}
diff --git a/portal-ui/src/views/VideoGen.vue b/portal-ui/src/views/VideoGen.vue
index 7c921d4..a876cc4 100644
--- a/portal-ui/src/views/VideoGen.vue
+++ b/portal-ui/src/views/VideoGen.vue
@@ -270,7 +270,7 @@ export default {
 		maxMediaCount() {
 			if (this.videoMode === 'image-first-frame') return 1
 			if (this.videoMode === 'image-first-last-frame') return 2
-			if (this.videoMode === 'image-reference') return 9
+			if (this.videoMode === 'image-reference') return 12
 			return 12
 		},
 		allowedMediaTypes() {
diff --git a/web-api/ruoyi-admin/src/main/java/com/ruoyi/api/PortalVideoController.java b/web-api/ruoyi-admin/src/main/java/com/ruoyi/api/PortalVideoController.java
index 994bb34..4d726fe 100644
--- a/web-api/ruoyi-admin/src/main/java/com/ruoyi/api/PortalVideoController.java
+++ b/web-api/ruoyi-admin/src/main/java/com/ruoyi/api/PortalVideoController.java
@@ -33,6 +33,7 @@ import org.springframework.web.bind.annotation.*;
 
 import java.util.ArrayList;
 import java.util.LinkedHashMap;
+import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
@@ -305,7 +306,8 @@ public class PortalVideoController extends BaseController {
                     filtered.add(it);
                 }
             }
-            contentList = filtered;
+            // 文中多次出现同一 [图n]/[视频n]/[音频n]（同一 URL）时，只保留一条 reference_* 记录
+            contentList = dedupeReferenceContentAfterText(filtered);
 
             String firstRef = contentList.stream()
                     .skip(1)
@@ -343,6 +345,42 @@ public class PortalVideoController extends BaseController {
         return submitOrderAndCreate(request, "image-reference", body);
     }
 
+    /**
+     * 文中多次出现同一素材（同一 role + URL）时，只保留一条 reference_*，顺序为首次出现顺序。
+     */
+    private static List<ContentItem> dedupeReferenceContentAfterText(List<ContentItem> filtered) {
+        if (filtered == null || filtered.isEmpty()) {
+            return filtered;
+        }
+        List<ContentItem> out = new ArrayList<>();
+        out.add(filtered.get(0));
+        Set<String> seen = new LinkedHashSet<>();
+        for (int i = 1; i < filtered.size(); i++) {
+            ContentItem it = filtered.get(i);
+            String key = referenceItemDedupeKey(it);
+            if (StringUtils.isEmpty(key)) {
+                continue;
+            }
+            if (seen.add(key)) {
+                out.add(it);
+            }
+        }
+        return out;
+    }
+
+    private static String referenceItemDedupeKey(ContentItem item) {
+        if (isReferenceImageContentItem(item) && item.getImageUrl() != null) {
+            return "reference_image::" + StringUtils.trim(item.getImageUrl().getUrl());
+        }
+        if (isReferenceVideoContentItem(item) && item.getVideoUrl() != null) {
+            return "reference_video::" + StringUtils.trim(item.getVideoUrl().getUrl());
+        }
+        if (isReferenceAudioContentItem(item) && item.getAudioUrl() != null) {
+            return "reference_audio::" + StringUtils.trim(item.getAudioUrl().getUrl());
+        }
+        return null;
+    }
+
     private static String firstReferenceUrlFromItem(ContentItem item) {
         if (isReferenceImageContentItem(item)) {
             return item.getImageUrl().getUrl();