diff --git a/libs/community/langchain_community/chat_models/baidu_qianfan_endpoint.py b/libs/community/langchain_community/chat_models/baidu_qianfan_endpoint.py
index 81e2a544a47..4b617a10f66 100644
--- a/libs/community/langchain_community/chat_models/baidu_qianfan_endpoint.py
+++ b/libs/community/langchain_community/chat_models/baidu_qianfan_endpoint.py
@@ -122,6 +122,7 @@ class QianfanChatEndpoint(BaseChatModel):
                 values,
                 "qianfan_ak",
                 "QIANFAN_AK",
+                default="",
             )
         )
         values["qianfan_sk"] = convert_to_secret_str(
@@ -129,14 +130,17 @@ class QianfanChatEndpoint(BaseChatModel):
                 values,
                 "qianfan_sk",
                 "QIANFAN_SK",
+                default="",
             )
         )
         params = {
-            "ak": values["qianfan_ak"].get_secret_value(),
-            "sk": values["qianfan_sk"].get_secret_value(),
             "model": values["model"],
             "stream": values["streaming"],
         }
+        if values["qianfan_ak"].get_secret_value() != "":
+            params["ak"] = values["qianfan_ak"].get_secret_value()
+        if values["qianfan_sk"].get_secret_value() != "":
+            params["sk"] = values["qianfan_sk"].get_secret_value()
         if values["endpoint"] is not None and values["endpoint"] != "":
             params["endpoint"] = values["endpoint"]
         try:
diff --git a/libs/community/langchain_community/embeddings/baidu_qianfan_endpoint.py b/libs/community/langchain_community/embeddings/baidu_qianfan_endpoint.py
index 01c440ab251..2920447c23b 100644
--- a/libs/community/langchain_community/embeddings/baidu_qianfan_endpoint.py
+++ b/libs/community/langchain_community/embeddings/baidu_qianfan_endpoint.py
@@ -5,7 +5,7 @@ from typing import Any, Dict, List, Optional
 
 from langchain_core.embeddings import Embeddings
 from langchain_core.pydantic_v1 import BaseModel, root_validator
-from langchain_core.utils import get_from_dict_or_env
+from langchain_core.utils import convert_to_secret_str, get_from_dict_or_env
 
 logger = logging.getLogger(__name__)
 
@@ -67,25 +67,33 @@ class QianfanEmbeddingsEndpoint(BaseModel, Embeddings):
             ValueError: qianfan package not found, please install it with `pip install
             qianfan`
         """
-        values["qianfan_ak"] = get_from_dict_or_env(
-            values,
-            "qianfan_ak",
-            "QIANFAN_AK",
+        values["qianfan_ak"] = convert_to_secret_str(
+            get_from_dict_or_env(
+                values,
+                "qianfan_ak",
+                "QIANFAN_AK",
+                default="",
+            )
         )
-        values["qianfan_sk"] = get_from_dict_or_env(
-            values,
-            "qianfan_sk",
-            "QIANFAN_SK",
+        values["qianfan_sk"] = convert_to_secret_str(
+            get_from_dict_or_env(
+                values,
+                "qianfan_sk",
+                "QIANFAN_SK",
+                default="",
+            )
         )
 
         try:
             import qianfan
 
             params = {
-                "ak": values["qianfan_ak"],
-                "sk": values["qianfan_sk"],
                 "model": values["model"],
             }
+            if values["qianfan_ak"].get_secret_value() != "":
+                params["ak"] = values["qianfan_ak"].get_secret_value()
+            if values["qianfan_sk"].get_secret_value() != "":
+                params["sk"] = values["qianfan_sk"].get_secret_value()
             if values["endpoint"] is not None and values["endpoint"] != "":
                 params["endpoint"] = values["endpoint"]
             values["client"] = qianfan.Embedding(**params)
diff --git a/libs/community/langchain_community/llms/baidu_qianfan_endpoint.py b/libs/community/langchain_community/llms/baidu_qianfan_endpoint.py
index 09d765de9d4..36607f1b1e4 100644
--- a/libs/community/langchain_community/llms/baidu_qianfan_endpoint.py
+++ b/libs/community/langchain_community/llms/baidu_qianfan_endpoint.py
@@ -17,7 +17,7 @@ from langchain_core.callbacks import (
 from langchain_core.language_models.llms import LLM
 from langchain_core.outputs import GenerationChunk
 from langchain_core.pydantic_v1 import Field, root_validator
-from langchain_core.utils import get_from_dict_or_env
+from langchain_core.utils import convert_to_secret_str, get_from_dict_or_env
 
 logger = logging.getLogger(__name__)
 
@@ -73,22 +73,30 @@ class QianfanLLMEndpoint(LLM):
 
     @root_validator()
     def validate_environment(cls, values: Dict) -> Dict:
-        values["qianfan_ak"] = get_from_dict_or_env(
-            values,
-            "qianfan_ak",
-            "QIANFAN_AK",
+        values["qianfan_ak"] = convert_to_secret_str(
+            get_from_dict_or_env(
+                values,
+                "qianfan_ak",
+                "QIANFAN_AK",
+                default="",
+            )
         )
-        values["qianfan_sk"] = get_from_dict_or_env(
-            values,
-            "qianfan_sk",
-            "QIANFAN_SK",
+        values["qianfan_sk"] = convert_to_secret_str(
+            get_from_dict_or_env(
+                values,
+                "qianfan_sk",
+                "QIANFAN_SK",
+                default="",
+            )
         )
 
         params = {
-            "ak": values["qianfan_ak"],
-            "sk": values["qianfan_sk"],
             "model": values["model"],
         }
+        if values["qianfan_ak"].get_secret_value() != "":
+            params["ak"] = values["qianfan_ak"].get_secret_value()
+        if values["qianfan_sk"].get_secret_value() != "":
+            params["sk"] = values["qianfan_sk"].get_secret_value()
         if values["endpoint"] is not None and values["endpoint"] != "":
             params["endpoint"] = values["endpoint"]
         try: