diff --git a/.env.example b/.env.example
index a74823e..578f1d6 100644
--- a/.env.example
+++ b/.env.example
@@ -61,7 +61,7 @@ MAKER_PRICE_TICK=0.1                    # Maker price tick size (defaults to PRI
 
 # Maker-points Binance depth imbalance monitor
 MAKER_POINTS_BINANCE_DEPTH_WINDOW_BPS=3       # Binance depth monitor window around best bid/ask (bps)
-MAKER_POINTS_BINANCE_DEPTH_IMBALANCE_RATIO=8  # Imbalance threshold ratio (e.g. 8 => one side >= 8x)
+MAKER_POINTS_BINANCE_DEPTH_IMBALANCE_RATIO=9  # Imbalance threshold ratio (e.g. 9 => one side >= 9x)
 
 # Grid strategy defaults
 GRID_LOWER_PRICE=25000                  # Grid lower bound price (quote currency)
diff --git a/docs/standx/maker-points-guide.md b/docs/standx/maker-points-guide.md
index cd181e7..5b2b0d0 100644
--- a/docs/standx/maker-points-guide.md
+++ b/docs/standx/maker-points-guide.md
@@ -133,7 +133,7 @@ MAKER_POINTS_CLOSE_THRESHOLD=0.1
 MAKER_POINTS_STOP_LOSS_USD=0
 MAKER_POINTS_MIN_REPRICE_BPS=3
 MAKER_POINTS_BINANCE_DEPTH_WINDOW_BPS=3
-MAKER_POINTS_BINANCE_DEPTH_IMBALANCE_RATIO=8
+MAKER_POINTS_BINANCE_DEPTH_IMBALANCE_RATIO=9
 
 # ===== 挂单档位开关 =====
 MAKER_POINTS_BAND_0_10=true
@@ -176,7 +176,7 @@ MAKER_POINTS_CLOSE_THRESHOLD=0.1
 MAKER_POINTS_STOP_LOSS_USD=0
 MAKER_POINTS_MIN_REPRICE_BPS=3
 MAKER_POINTS_BINANCE_DEPTH_WINDOW_BPS=3
-MAKER_POINTS_BINANCE_DEPTH_IMBALANCE_RATIO=8
+MAKER_POINTS_BINANCE_DEPTH_IMBALANCE_RATIO=9
 MAKER_POINTS_BAND_0_10=true
 MAKER_POINTS_BAND_10_30=true
 MAKER_POINTS_BAND_30_100=true
@@ -219,7 +219,7 @@ bun run pm2:start:maker-points
 | `MAKER_POINTS_CLOSE_THRESHOLD` | 持仓达到多少开始平仓 | 设为 `0` 表示不自动平仓 |
 | `MAKER_POINTS_STOP_LOSS_USD` | 亏损多少美元强制平仓 | 设为 `0` 表示关闭止损 |
 | `MAKER_POINTS_BINANCE_DEPTH_WINDOW_BPS` | Binance 失衡检测窗口（bps） | 默认 `3` |
-| `MAKER_POINTS_BINANCE_DEPTH_IMBALANCE_RATIO` | Binance 失衡比例阈值 | 默认 `8` |
+| `MAKER_POINTS_BINANCE_DEPTH_IMBALANCE_RATIO` | Binance 失衡比例阈值 | 默认 `9` |
 | `MAKER_POINTS_BAND_*` | 三个挂单档位的开关 | 全部 `true` 即可 |
 | `STANDX_TOKEN_CREATE_DATE` | Token 创建日期 | 推荐配置，格式 YYYY-MM-DD |
 | `STANDX_TOKEN_VALIDITY_DAYS` | Token 有效期天数 | 推荐配置，与创建日期配合使用 |
diff --git a/src/config.ts b/src/config.ts
index 2cbd705..a7beb6c 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -229,7 +229,7 @@ export interface MakerPointsConfig {
   enableBinanceDepthCancel: boolean;
   /** Binance 深度监控窗口（bps），默认 3 */
   binanceDepthWindowBps?: number;
-  /** Binance 深度失衡比例阈值，默认 8 */
+  /** Binance 深度失衡比例阈值，默认 9 */
   binanceDepthImbalanceRatio?: number;
   /** 各档位最小深度阈值 (BTC)，盘口到目标价之间的挂单量低于此值则跳过该档位，默认 10 */
   filterMinDepth: number;
@@ -259,7 +259,7 @@ export const makerPointsConfig: MakerPointsConfig = {
   minRepriceBps: parseNumber(process.env.MAKER_POINTS_MIN_REPRICE_BPS, 3),
   enableBinanceDepthCancel: parseBoolean(process.env.MAKER_POINTS_BINANCE_DEPTH_CANCEL, true),
   binanceDepthWindowBps: parseNumber(process.env.MAKER_POINTS_BINANCE_DEPTH_WINDOW_BPS, 3),
-  binanceDepthImbalanceRatio: parseNumber(process.env.MAKER_POINTS_BINANCE_DEPTH_IMBALANCE_RATIO, 8),
+  binanceDepthImbalanceRatio: parseNumber(process.env.MAKER_POINTS_BINANCE_DEPTH_IMBALANCE_RATIO, 9),
   filterMinDepth: parseNumber(process.env.MAKER_POINTS_FILTER_MIN_DEPTH, 10),
 };
 
diff --git a/src/strategy/maker-points-engine.ts b/src/strategy/maker-points-engine.ts
index 0685f38..66ffd78 100644
--- a/src/strategy/maker-points-engine.ts
+++ b/src/strategy/maker-points-engine.ts
@@ -208,7 +208,7 @@ export class MakerPointsEngine {
       levels: 20,
       ratio: Number.isFinite(this.config.binanceDepthImbalanceRatio)
         ? Math.max(1.01, Number(this.config.binanceDepthImbalanceRatio))
-        : 8,
+        : 9,
       depthWindowBps: Number.isFinite(this.config.binanceDepthWindowBps)
         ? Math.max(1, Number(this.config.binanceDepthWindowBps))
         : 3,
diff --git a/tests/maker-points-binance-depth-config.test.ts b/tests/maker-points-binance-depth-config.test.ts
index 52e391e..33770dc 100644
--- a/tests/maker-points-binance-depth-config.test.ts
+++ b/tests/maker-points-binance-depth-config.test.ts
@@ -27,7 +27,7 @@ class StubAdapter implements ExchangeAdapter {
 }
 
 describe("MakerPointsEngine Binance depth monitor config", () => {
-  it("uses default 3bps window and ratio 8", () => {
+  it("uses default 3bps window and ratio 9", () => {
     const engine = new MakerPointsEngine(
       {
         symbol: "BTC-USD",
@@ -56,7 +56,7 @@ describe("MakerPointsEngine Binance depth monitor config", () => {
       .options;
 
     expect(trackerOptions?.depthWindowBps).toBe(3);
-    expect(trackerOptions?.ratio).toBe(8);
+    expect(trackerOptions?.ratio).toBe(9);
 
     engine.stop();
   });