diff --git a/pilot/embedding_engine/markdown_embedding.py b/pilot/embedding_engine/markdown_embedding.py
index 0d70ba34f..225cdad82 100644
--- a/pilot/embedding_engine/markdown_embedding.py
+++ b/pilot/embedding_engine/markdown_embedding.py
@@ -6,7 +6,7 @@ from typing import List
 import markdown
 from bs4 import BeautifulSoup
 from langchain.schema import Document
-from langchain.text_splitter import SpacyTextSplitter, CharacterTextSplitter
+from langchain.text_splitter import SpacyTextSplitter, CharacterTextSplitter, RecursiveCharacterTextSplitter
 
 from pilot.configs.config import Config
 from pilot.embedding_engine import SourceEmbedding, register
@@ -37,11 +37,14 @@ class MarkdownEmbedding(SourceEmbedding):
                 length_function=len,
             )
         else:
-            text_splitter = SpacyTextSplitter(
-                pipeline="zh_core_web_sm",
-                chunk_size=CFG.KNOWLEDGE_CHUNK_SIZE,
-                chunk_overlap=100,
-            )
+            try:
+                text_splitter = SpacyTextSplitter(
+                    pipeline="zh_core_web_sm",
+                    chunk_size=CFG.KNOWLEDGE_CHUNK_SIZE,
+                    chunk_overlap=100,
+                )
+            except Exception:
+                text_splitter = RecursiveCharacterTextSplitter(chunk_size=CFG.KNOWLEDGE_CHUNK_SIZE, chunk_overlap=50)
         return loader.load_and_split(text_splitter)
 
     @register
diff --git a/pilot/embedding_engine/pdf_embedding.py b/pilot/embedding_engine/pdf_embedding.py
index 2b8f244e3..3a47e115e 100644
--- a/pilot/embedding_engine/pdf_embedding.py
+++ b/pilot/embedding_engine/pdf_embedding.py
@@ -4,7 +4,7 @@ from typing import List
 
 from langchain.document_loaders import PyPDFLoader
 from langchain.schema import Document
-from langchain.text_splitter import SpacyTextSplitter, CharacterTextSplitter
+from langchain.text_splitter import SpacyTextSplitter, CharacterTextSplitter, RecursiveCharacterTextSplitter
 
 from pilot.configs.config import Config
 from pilot.embedding_engine import SourceEmbedding, register
@@ -40,11 +40,14 @@ class PDFEmbedding(SourceEmbedding):
                 length_function=len,
             )
         else:
-            text_splitter = SpacyTextSplitter(
-                pipeline="zh_core_web_sm",
-                chunk_size=CFG.KNOWLEDGE_CHUNK_SIZE,
-                chunk_overlap=100,
-            )
+            try:
+                text_splitter = SpacyTextSplitter(
+                    pipeline="zh_core_web_sm",
+                    chunk_size=CFG.KNOWLEDGE_CHUNK_SIZE,
+                    chunk_overlap=100,
+                )
+            except Exception:
+                text_splitter = RecursiveCharacterTextSplitter(chunk_size=CFG.KNOWLEDGE_CHUNK_SIZE, chunk_overlap=50)
         return loader.load_and_split(text_splitter)
 
     @register
diff --git a/pilot/embedding_engine/ppt_embedding.py b/pilot/embedding_engine/ppt_embedding.py
index da4390849..2ddc583f9 100644
--- a/pilot/embedding_engine/ppt_embedding.py
+++ b/pilot/embedding_engine/ppt_embedding.py
@@ -4,7 +4,7 @@ from typing import List
 
 from langchain.document_loaders import UnstructuredPowerPointLoader
 from langchain.schema import Document
-from langchain.text_splitter import SpacyTextSplitter, CharacterTextSplitter
+from langchain.text_splitter import SpacyTextSplitter, CharacterTextSplitter, RecursiveCharacterTextSplitter
 
 from pilot.configs.config import Config
 from pilot.embedding_engine import SourceEmbedding, register
@@ -38,11 +38,14 @@ class PPTEmbedding(SourceEmbedding):
                 length_function=len,
             )
         else:
-            text_splitter = SpacyTextSplitter(
-                pipeline="zh_core_web_sm",
-                chunk_size=CFG.KNOWLEDGE_CHUNK_SIZE,
-                chunk_overlap=100,
-            )
+            try:
+                text_splitter = SpacyTextSplitter(
+                    pipeline="zh_core_web_sm",
+                    chunk_size=CFG.KNOWLEDGE_CHUNK_SIZE,
+                    chunk_overlap=100,
+                )
+            except Exception:
+                text_splitter = RecursiveCharacterTextSplitter(chunk_size=CFG.KNOWLEDGE_CHUNK_SIZE, chunk_overlap=50)
         return loader.load_and_split(text_splitter)
 
     @register
diff --git a/pilot/embedding_engine/url_embedding.py b/pilot/embedding_engine/url_embedding.py
index ce9e5360d..273b5e777 100644
--- a/pilot/embedding_engine/url_embedding.py
+++ b/pilot/embedding_engine/url_embedding.py
@@ -3,7 +3,7 @@ from typing import List
 from bs4 import BeautifulSoup
 from langchain.document_loaders import WebBaseLoader
 from langchain.schema import Document
-from langchain.text_splitter import CharacterTextSplitter, SpacyTextSplitter
+from langchain.text_splitter import CharacterTextSplitter, SpacyTextSplitter, RecursiveCharacterTextSplitter
 
 from pilot.configs.config import Config
 from pilot.configs.model_config import KNOWLEDGE_CHUNK_SPLIT_SIZE
@@ -33,11 +33,14 @@ class URLEmbedding(SourceEmbedding):
                 length_function=len,
             )
         else:
-            text_splitter = SpacyTextSplitter(
-                pipeline="zh_core_web_sm",
-                chunk_size=CFG.KNOWLEDGE_CHUNK_SIZE,
-                chunk_overlap=100,
-            )
+            try:
+                text_splitter = SpacyTextSplitter(
+                    pipeline="zh_core_web_sm",
+                    chunk_size=CFG.KNOWLEDGE_CHUNK_SIZE,
+                    chunk_overlap=100,
+                )
+            except Exception:
+                text_splitter = RecursiveCharacterTextSplitter(chunk_size=CFG.KNOWLEDGE_CHUNK_SIZE, chunk_overlap=50)
         return loader.load_and_split(text_splitter)
 
     @register
diff --git a/pilot/embedding_engine/word_embedding.py b/pilot/embedding_engine/word_embedding.py
index 55988a240..efb337a9a 100644
--- a/pilot/embedding_engine/word_embedding.py
+++ b/pilot/embedding_engine/word_embedding.py
@@ -4,7 +4,7 @@ from typing import List
 
 from langchain.document_loaders import UnstructuredWordDocumentLoader
 from langchain.schema import Document
-from langchain.text_splitter import CharacterTextSplitter, SpacyTextSplitter
+from langchain.text_splitter import CharacterTextSplitter, SpacyTextSplitter, RecursiveCharacterTextSplitter
 
 from pilot.configs.config import Config
 from pilot.embedding_engine import SourceEmbedding, register
@@ -32,11 +32,14 @@ class WordEmbedding(SourceEmbedding):
                 length_function=len,
             )
         else:
-            text_splitter = SpacyTextSplitter(
-                pipeline="zh_core_web_sm",
-                chunk_size=CFG.KNOWLEDGE_CHUNK_SIZE,
-                chunk_overlap=100,
-            )
+            try:
+                text_splitter = SpacyTextSplitter(
+                    pipeline="zh_core_web_sm",
+                    chunk_size=CFG.KNOWLEDGE_CHUNK_SIZE,
+                    chunk_overlap=100,
+                )
+            except Exception:
+                text_splitter = RecursiveCharacterTextSplitter(chunk_size=CFG.KNOWLEDGE_CHUNK_SIZE, chunk_overlap=50)
         return loader.load_and_split(text_splitter)
 
     @register