diff --git a/backend/agg_trades_collector.py b/backend/agg_trades_collector.py
index 5977281..1232f27 100644
--- a/backend/agg_trades_collector.py
+++ b/backend/agg_trades_collector.py
@@ -35,7 +35,7 @@ logging.basicConfig(
 logger = logging.getLogger("collector")
 
 BINANCE_FAPI = "https://fapi.binance.com/fapi/v1"
-SYMBOLS = ["BTCUSDT", "ETHUSDT"]
+SYMBOLS = ["BTCUSDT", "ETHUSDT", "XRPUSDT", "SOLUSDT"]
 HEADERS = {"User-Agent": "Mozilla/5.0 ArbitrageEngine/3.0"}
 
 BATCH_SIZE = 200
diff --git a/backend/main.py b/backend/main.py
index db6d9b1..6fccd1b 100644
--- a/backend/main.py
+++ b/backend/main.py
@@ -23,7 +23,7 @@ app.add_middleware(
 app.include_router(auth_router)
 
 BINANCE_FAPI = "https://fapi.binance.com/fapi/v1"
-SYMBOLS = ["BTCUSDT", "ETHUSDT"]
+SYMBOLS = ["BTCUSDT", "ETHUSDT", "XRPUSDT", "SOLUSDT"]
 HEADERS = {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36"}
 
 # 简单内存缓存（history/stats 60秒，rates 3秒）
@@ -424,7 +424,7 @@ async def get_signal_indicators(
 @app.get("/api/signals/latest")
 async def get_signal_latest(user: dict = Depends(get_current_user)):
     result = {}
-    for sym in ["BTCUSDT", "ETHUSDT"]:
+    for sym in SYMBOLS:
         row = await async_fetchrow(
             "SELECT ts, cvd_fast, cvd_mid, cvd_day, cvd_fast_slope, atr_5m, atr_percentile, "
             "vwap_30m, price, p95_qty, p99_qty, score, signal "
@@ -440,7 +440,7 @@ async def get_signal_latest(user: dict = Depends(get_current_user)):
 async def get_market_indicators(user: dict = Depends(get_current_user)):
     """返回最新的market_indicators数据（V5.1新增4个数据源）"""
     result = {}
-    for sym in ["BTCUSDT", "ETHUSDT"]:
+    for sym in SYMBOLS:
         indicators = {}
         for ind_type in ["long_short_ratio", "top_trader_position", "open_interest_hist", "coinbase_premium"]:
             row = await async_fetchrow(
diff --git a/backend/market_data_collector.py b/backend/market_data_collector.py
index b9a4eb1..0c6af9c 100644
--- a/backend/market_data_collector.py
+++ b/backend/market_data_collector.py
@@ -9,7 +9,7 @@ import aiohttp
 import psycopg2
 from psycopg2.extras import Json
 
-SYMBOLS = ["BTCUSDT", "ETHUSDT"]
+SYMBOLS = ["BTCUSDT", "ETHUSDT", "XRPUSDT", "SOLUSDT"]
 INTERVAL_SECONDS = 300
 
 PG_HOST = os.getenv("PG_HOST", "127.0.0.1")
diff --git a/backend/signal_engine.py b/backend/signal_engine.py
index 2101555..188579a 100644
--- a/backend/signal_engine.py
+++ b/backend/signal_engine.py
@@ -34,7 +34,7 @@ logging.basicConfig(
 )
 logger = logging.getLogger("signal-engine")
 
-SYMBOLS = ["BTCUSDT", "ETHUSDT"]
+SYMBOLS = ["BTCUSDT", "ETHUSDT", "XRPUSDT", "SOLUSDT"]
 LOOP_INTERVAL = 15  # 秒（从5改15，CPU降60%，信号质量无影响）
 
 # 窗口大小（毫秒）
diff --git a/frontend/app/signals/page.tsx b/frontend/app/signals/page.tsx
index 0ef8ee1..cf0b4a7 100644
--- a/frontend/app/signals/page.tsx
+++ b/frontend/app/signals/page.tsx
@@ -9,7 +9,7 @@ import {
   ReferenceLine, CartesianGrid, Legend
 } from "recharts";
 
-type Symbol = "BTC" | "ETH";
+type Symbol = "BTC" | "ETH" | "XRP" | "SOL";
 
 interface IndicatorRow {
   ts: number;
@@ -456,7 +456,7 @@ export default function SignalsPage() {
           <p className="text-slate-500 text-xs mt-0.5">五层100分评分 + 市场拥挤度 + 环境确认</p>
         </div>
         <div className="flex gap-1.5">
-          {(["BTC", "ETH"] as Symbol[]).map(s => (
+          {(["BTC", "ETH", "XRP", "SOL"] as Symbol[]).map(s => (
             <button key={s} onClick={() => setSymbol(s)}
               className={`px-4 py-1.5 rounded-lg border text-sm font-medium transition-colors ${symbol === s ? "bg-blue-600 text-white border-blue-600" : "border-slate-200 text-slate-600 hover:border-blue-400"}`}>
               {s}