diff --git a/api/apps/chunk_app.py b/api/apps/chunk_app.py
index 2387dd5d01..e6ceb66e69 100644
--- a/api/apps/chunk_app.py
+++ b/api/apps/chunk_app.py
@@ -498,15 +498,6 @@ async def retrieval_test():
             _question += await keyword_extraction(chat_mdl, _question)
 
         labels = label_question(_question, [kb])
-        highlight_val = req.get("highlight", None)
-        if highlight_val is None:
-            highlight = False
-        elif isinstance(highlight_val, bool):
-            highlight = highlight_val
-        elif isinstance(highlight_val, str):
-            highlight = highlight_val.lower() in ("true", "1", "yes", "on")
-        else:
-            highlight = bool(highlight_val)
         ranks = await settings.retriever.retrieval(
                         _question,
                         embd_mdl,
@@ -519,7 +510,6 @@ async def retrieval_test():
                         doc_ids=local_doc_ids,
                         top=top,
                         rerank_mdl=rerank_mdl,
-                        highlight=highlight,
                         rank_feature=labels
                     )
 
diff --git a/rag/nlp/search.py b/rag/nlp/search.py
index 5b1e88ad9c..7ad19fe7c4 100644
--- a/rag/nlp/search.py
+++ b/rag/nlp/search.py
@@ -654,7 +654,6 @@ class Dealer:
             chunk = self.dataStore.get(cid, idx_nms[0], kb_ids)
             if not chunk:
                 continue
-            has_highlights = any(ck.get("highlight") for ck in chunks)
             d = {
                 "chunk_id": cid,
                 "content_ltks": chunk["content_ltks"],
@@ -671,8 +670,6 @@ class Dealer:
                 "positions": chunk.get("position_int", []),
                 "doc_type_kwd": chunk.get("doc_type_kwd", "")
             }
-            if has_highlights:
-                d["highlight"] = chunk["content_with_weight"]
             for k in chunk.keys():
                 if k[-4:] == "_vec":
                     d["vector"] = chunk[k]
@@ -705,7 +702,6 @@ class Dealer:
         vector_size = 1024
         for id, cks in mom_chunks.items():
             chunk = self.dataStore.get(id, idx_nms[0], [ck["kb_id"] for ck in cks])
-            child_highlights = [ck["highlight"] for ck in cks if ck.get("highlight")]
             d = {
                 "chunk_id": id,
                 "content_ltks": " ".join([ck["content_ltks"] for ck in cks]),
@@ -722,8 +718,6 @@ class Dealer:
                 "positions": chunk.get("position_int", []),
                 "doc_type_kwd": chunk.get("doc_type_kwd", "")
             }
-            if child_highlights:
-                d["highlight"] = " ".join(child_highlights)
             for k in cks[0].keys():
                 if k[-4:] == "_vec":
                     d["vector"] = cks[0][k]
diff --git a/test/testcases/test_web_api/test_chunk_app/test_retrieval_chunks.py b/test/testcases/test_web_api/test_chunk_app/test_retrieval_chunks.py
index 0296bd25f8..14857210f4 100644
--- a/test/testcases/test_web_api/test_chunk_app/test_retrieval_chunks.py
+++ b/test/testcases/test_web_api/test_chunk_app/test_retrieval_chunks.py
@@ -265,8 +265,8 @@ class TestChunksRetrieval:
     @pytest.mark.parametrize(
         "payload, expected_code, expected_highlight, expected_message",
         [
-            ({"highlight": True}, 0, True, ""),
-            ({"highlight": "True"}, 0, True, ""),
+            pytest.param({"highlight": True}, 0, True, "", marks=pytest.mark.skip(reason="highlight not functionnal")),
+            pytest.param({"highlight": "True"}, 0, True, "", marks=pytest.mark.skip(reason="highlight not functionnal")),
             ({"highlight": False}, 0, False, ""),
             ({"highlight": "False"}, 0, False, ""),
             ({"highlight": None}, 0, False, "")
diff --git a/web/src/hooks/use-knowledge-request.ts b/web/src/hooks/use-knowledge-request.ts
index f7bbfe2315..fc77f40f1a 100644
--- a/web/src/hooks/use-knowledge-request.ts
+++ b/web/src/hooks/use-knowledge-request.ts
@@ -622,7 +622,6 @@ export const useTestChunkRetrieval = (): ResponsePostType<ITestingResult> & {
       const { data } = await kbService.retrievalTest({
         ...values,
         kb_id: values.kb_id ?? knowledgeBaseId,
-        highlight: true,
         page,
         size: pageSize,
       });
@@ -667,7 +666,6 @@ export const useTestChunkAllRetrieval = (): ResponsePostType<ITestingResult> & {
       const { data } = await kbService.retrievalTest({
         ...values,
         kb_id: values.kb_id ?? knowledgeBaseId,
-        highlight: true,
         doc_ids: [],
         page,
         size: pageSize,
diff --git a/web/src/less/mixins.less b/web/src/less/mixins.less
index a58268a3a5..c77eac838c 100644
--- a/web/src/less/mixins.less
+++ b/web/src/less/mixins.less
@@ -5,7 +5,7 @@
 
 .chunkText() {
   em {
-    color: rgb(var(--accent-primary));
+    color: var(--accent-primary);
     font-style: normal;
   }
   table {
diff --git a/web/src/pages/dataset/testing/testing-result.tsx b/web/src/pages/dataset/testing/testing-result.tsx
index fdf7d83a1c..5dceefee05 100644
--- a/web/src/pages/dataset/testing/testing-result.tsx
+++ b/web/src/pages/dataset/testing/testing-result.tsx
@@ -1,6 +1,5 @@
 import { EmptyType } from '@/components/empty/constant';
 import Empty from '@/components/empty/empty';
-import HighLightMarkdown from '@/components/highlight-markdown';
 import { FilterButton } from '@/components/list-filter-bar';
 import { FilterPopover } from '@/components/list-filter-bar/filter-popover';
 import { FilterCollection } from '@/components/list-filter-bar/interface';
@@ -92,11 +91,7 @@ export function TestingResult({
                 <article key={x.chunk_id}>
                   <Card className="px-5 py-2.5 bg-transparent shadow-none">
                     <ChunkTitle item={x}></ChunkTitle>
-                    <div className="!mt-2.5">
-                      <HighLightMarkdown>
-                        {x.highlight || x.content_with_weight}
-                      </HighLightMarkdown>
-                    </div>
+                    <p className="!mt-2.5"> {x.content_with_weight}</p>
                   </Card>
                 </article>
               ))}
diff --git a/web/src/pages/next-search/search-view.tsx b/web/src/pages/next-search/search-view.tsx
index c417dec1fd..835e89821c 100644
--- a/web/src/pages/next-search/search-view.tsx
+++ b/web/src/pages/next-search/search-view.tsx
@@ -205,7 +205,7 @@ export default function SearchingView({
                               ></ImageWithPopover>
                             )}
                             <HighLightMarkdown>
-                              {chunk.highlight || chunk.content_with_weight}
+                              {chunk.content_with_weight}
                             </HighLightMarkdown>
                           </div>
                           <div