diff --git a/cryptoai/routes/crypto.py b/cryptoai/routes/crypto.py
index 24c8e3e..6390b7f 100644
--- a/cryptoai/routes/crypto.py
+++ b/cryptoai/routes/crypto.py
@@ -14,7 +14,6 @@ import requests
 from cryptoai.api.binance_api import get_binance_api
 from cryptoai.models.data_processor import DataProcessor
 from datetime import timedelta
-from cryptoai.models.token import TokenManager
 from sqlalchemy.orm import Session
 from cryptoai.utils.db_manager import get_db
 # 创建路由
@@ -25,8 +24,30 @@ logger.setLevel(logging.DEBUG)
 
 @router.get("/search/{key}")
 async def search_crypto(key: str, session: Session = Depends(get_db)):
-    manager = TokenManager(session)
-    result = manager.search_token(key)
+    """
+    搜索加密货币交易对
+    从币安API获取所有USDT交易对，然后根据关键字过滤
+    """
+    binance_api = get_binance_api()
+    all_symbols = binance_api.get_all_symbols()
+    
+    # 将搜索关键字转换为大写
+    key_upper = key.upper()
+    
+    # 过滤包含关键字的交易对
+    filtered_symbols = [symbol for symbol in all_symbols if key_upper in symbol]
+    
+    # 构建返回结果，格式与原来保持一致
+    result = []
+    for symbol in filtered_symbols[:20]:  # 限制返回前20个结果
+        # 从symbol中提取基础资产名称 (如BTCUSDT -> BTC)
+        base_asset = symbol.replace('USDT', '') if symbol.endswith('USDT') else symbol
+        result.append({
+            "symbol": symbol,
+            "base_asset": base_asset,
+            "quote_asset": "USDT"
+        })
+    
     return result
 
 class CryptoAnalysisRequest(BaseModel):
@@ -35,15 +56,19 @@ class CryptoAnalysisRequest(BaseModel):
 
 @router.get("/kline/{symbol}")
 async def get_crypto_kline(symbol: str, timeframe: Optional[str] = None, limit: Optional[int] = 100, session: Session = Depends(get_db)):
-    # 检查symbol是否存在
-    token_manager = TokenManager(session)
-    tokens = token_manager.search_token(symbol)
-    if not tokens or len(tokens) == 0:
+    # 检查symbol是否存在 - 从币安API获取所有交易对进行验证
+    binance_api = get_binance_api()
+    all_symbols = binance_api.get_all_symbols()
+    
+    # 将输入的symbol转换为大写并确保以USDT结尾
+    symbol_upper = symbol.upper()
+    if not symbol_upper.endswith('USDT'):
+        symbol_upper += 'USDT'
+    
+    if symbol_upper not in all_symbols:
         raise HTTPException(status_code=400, detail="您输入的币种在币安不存在，请检查后重新输入。")
 
-    symbol = tokens[0]["symbol"]
-
-    binance_api = get_binance_api()
+    symbol = symbol_upper
     result = {}