diff --git a/api/configs/feature/__init__.py b/api/configs/feature/__init__.py
index c220b98762..f9c1bd4224 100644
--- a/api/configs/feature/__init__.py
+++ b/api/configs/feature/__init__.py
@@ -33,7 +33,7 @@ class CodeExecutionSandboxConfig(BaseModel):
     Code Execution Sandbox configs
     """
     CODE_EXECUTION_ENDPOINT: str = Field(
-        description='whether to enable HTTP response compression of gzip',
+        description='endpoint URL of code execution servcie',
         default='http://sandbox:8194',
     )
 
diff --git a/api/configs/middleware/__init__.py b/api/configs/middleware/__init__.py
index c454f4e603..b6f962e3d5 100644
--- a/api/configs/middleware/__init__.py
+++ b/api/configs/middleware/__init__.py
@@ -2,7 +2,7 @@ from typing import Any, Optional
 
 from pydantic import BaseModel, Field, NonNegativeInt, PositiveInt, computed_field
 
-from configs.middleware.redis_config import RedisConfig
+from configs.middleware.cache.redis_config import RedisConfig
 from configs.middleware.storage.aliyun_oss_storage_config import AliyunOSSStorageConfig
 from configs.middleware.storage.amazon_s3_storage_config import S3StorageConfig
 from configs.middleware.storage.azure_blob_storage_config import AzureBlobStorageConfig
diff --git a/api/configs/middleware/cache/__init__.py b/api/configs/middleware/cache/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/api/configs/middleware/redis_config.py b/api/configs/middleware/cache/redis_config.py
similarity index 100%
rename from api/configs/middleware/redis_config.py
rename to api/configs/middleware/cache/redis_config.py
diff --git a/api/configs/middleware/storage/aliyun_oss_storage_config.py b/api/configs/middleware/storage/aliyun_oss_storage_config.py
index 67921149d6..a468f28ea0 100644
--- a/api/configs/middleware/storage/aliyun_oss_storage_config.py
+++ b/api/configs/middleware/storage/aliyun_oss_storage_config.py
@@ -9,31 +9,31 @@ class AliyunOSSStorageConfig(BaseModel):
     """
 
     ALIYUN_OSS_BUCKET_NAME: Optional[str] = Field(
-        description='Aliyun storage ',
+        description='Aliyun OSS bucket name',
         default=None,
     )
 
     ALIYUN_OSS_ACCESS_KEY: Optional[str] = Field(
-        description='Aliyun storage access key',
+        description='Aliyun OSS access key',
         default=None,
     )
 
     ALIYUN_OSS_SECRET_KEY: Optional[str] = Field(
-        description='Aliyun storage secret key',
+        description='Aliyun OSS secret key',
         default=None,
     )
 
     ALIYUN_OSS_ENDPOINT: Optional[str] = Field(
-        description='Aliyun storage endpoint URL',
+        description='Aliyun OSS endpoint URL',
         default=None,
     )
 
     ALIYUN_OSS_REGION: Optional[str] = Field(
-        description='Aliyun storage region',
+        description='Aliyun OSS region',
         default=None,
     )
 
     ALIYUN_OSS_AUTH_VERSION: Optional[str] = Field(
-        description='Aliyun storage authentication version',
+        description='Aliyun OSS authentication version',
         default=None,
     )
diff --git a/api/configs/middleware/storage/azure_blob_storage_config.py b/api/configs/middleware/storage/azure_blob_storage_config.py
index a37aa496f1..2fcb0ea3bd 100644
--- a/api/configs/middleware/storage/azure_blob_storage_config.py
+++ b/api/configs/middleware/storage/azure_blob_storage_config.py
@@ -24,6 +24,6 @@ class AzureBlobStorageConfig(BaseModel):
     )
 
     AZURE_BLOB_ACCOUNT_URL: Optional[str] = Field(
-        description='Azure Blob account url',
+        description='Azure Blob account URL',
         default=None,
     )
diff --git a/api/configs/middleware/vdb/milvus_config.py b/api/configs/middleware/vdb/milvus_config.py
index 88855db877..6c1cda5ee9 100644
--- a/api/configs/middleware/vdb/milvus_config.py
+++ b/api/configs/middleware/vdb/milvus_config.py
@@ -29,11 +29,11 @@ class MilvusConfig(BaseModel):
     )
 
     MILVUS_SECURE: bool = Field(
-        description='wheter to use SSL connection for Milvus',
+        description='whether to use SSL connection for Milvus',
         default=False,
     )
 
     MILVUS_DATABASE: str = Field(
-        description='Milvus database',
+        description='Milvus database, default to `default`',
         default='default',
     )
diff --git a/api/configs/middleware/vdb/tencent_vector_config.py b/api/configs/middleware/vdb/tencent_vector_config.py
index 083f10b40b..64ce2243c9 100644
--- a/api/configs/middleware/vdb/tencent_vector_config.py
+++ b/api/configs/middleware/vdb/tencent_vector_config.py
@@ -14,12 +14,12 @@ class TencentVectorDBConfig(BaseModel):
     )
 
     TENCENT_VECTOR_DB_API_KEY: Optional[str] = Field(
-        description='Tencent Vector api key',
+        description='Tencent Vector API key',
         default=None,
     )
 
     TENCENT_VECTOR_DB_TIMEOUT: PositiveInt = Field(
-        description='Tencent Vector timeout',
+        description='Tencent Vector timeout in seconds',
         default=30,
     )