diff --git a/backend/futures_trade_record/sql/04_create_variety_table.sql b/backend/futures_trade_record/sql/04_create_variety_table.sql
index 074e13f..01d63e1 100644
--- a/backend/futures_trade_record/sql/04_create_variety_table.sql
+++ b/backend/futures_trade_record/sql/04_create_variety_table.sql
@@ -16,12 +16,15 @@ BEGIN
         FOR EACH ROW
         EXECUTE FUNCTION update_data_modified_column();
         
-        RAISE NOTICE 'created variety table and trigger';
+        -- 主表索引：deleted+created_at 组合索引（常用于查询未删除数据并排序）
+        CREATE INDEX idx_variety_deleted_created_at ON variety(deleted, created_at);
+        
+        RAISE NOTICE 'created variety table, trigger and indexes';
     ELSE
         RAISE NOTICE 'variety table already exists';
     END IF;
 
-    -- 创建子表 variety_name 并添加外键
+    -- 创建子表 variety_name 并添加外键和索引
     IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'variety_name') THEN
         CREATE TABLE variety_name ( 
             id UUID DEFAULT gen_random_uuid_v7() PRIMARY KEY NOT NULL,
@@ -34,20 +37,25 @@ BEGIN
             CONSTRAINT fk_variety_name_variety
                 FOREIGN KEY (variety_id)
                 REFERENCES variety(id)
-                ON DELETE CASCADE  -- 主表记录删除时，子表关联记录也删除
-                ON UPDATE CASCADE  -- 主表id更新时，子表关联id同步更新
+                ON DELETE CASCADE
+                ON UPDATE CASCADE
         );
         CREATE TRIGGER update_variety_name_updated_at
         BEFORE UPDATE ON "variety_name"
         FOR EACH ROW
         EXECUTE FUNCTION update_data_modified_column();
         
-        RAISE NOTICE 'created variety_name table, trigger and foreign key';
+        -- 子表索引：外键+deleted组合索引（关联查询时高效过滤）
+        CREATE INDEX idx_variety_name_variety_id_deleted ON variety_name(variety_id, deleted);
+        -- 名称查询索引（支持按名称搜索品种）
+        CREATE INDEX idx_variety_name_name_deleted ON variety_name(name, deleted);
+        
+        RAISE NOTICE 'created variety_name table, trigger, foreign key and indexes';
     ELSE
         RAISE NOTICE 'variety_name table already exists';
     END IF;
 
-    -- 创建子表 variety_code 并添加外键
+    -- 创建子表 variety_code 并添加外键和索引
     IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'variety_code') THEN
         CREATE TABLE variety_code ( 
             id UUID DEFAULT gen_random_uuid_v7() PRIMARY KEY NOT NULL,
@@ -68,12 +76,17 @@ BEGIN
         FOR EACH ROW
         EXECUTE FUNCTION update_data_modified_column();
         
-        RAISE NOTICE 'created variety_code table, trigger and foreign key';
+        -- 子表索引：外键+deleted组合索引
+        CREATE INDEX idx_variety_code_variety_id_deleted ON variety_code(variety_id, deleted);
+        -- 代码查询索引（支持按代码搜索品种）
+        CREATE INDEX idx_variety_code_code_deleted ON variety_code(code, deleted);
+        
+        RAISE NOTICE 'created variety_code table, trigger, foreign key and indexes';
     ELSE
         RAISE NOTICE 'variety_code table already exists';
     END IF;
 
-    -- 创建子表 variety_tick 并添加外键
+    -- 创建子表 variety_tick 并添加外键和索引
     IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'variety_tick') THEN
         CREATE TABLE variety_tick ( 
             id UUID DEFAULT gen_random_uuid_v7() PRIMARY KEY NOT NULL,
@@ -94,12 +107,17 @@ BEGIN
         FOR EACH ROW
         EXECUTE FUNCTION update_data_modified_column();
         
-        RAISE NOTICE 'created variety_tick table, trigger and foreign key';
+        -- 子表索引：外键+deleted组合索引
+        CREATE INDEX idx_variety_tick_variety_id_deleted ON variety_tick(variety_id, deleted);
+        -- 跳点值范围查询索引
+        CREATE INDEX idx_variety_tick_tick_deleted ON variety_tick(tick, deleted);
+        
+        RAISE NOTICE 'created variety_tick table, trigger, foreign key and indexes';
     ELSE
         RAISE NOTICE 'variety_tick table already exists';
     END IF;
 
-    -- 创建子表 variety_tick_price 并添加外键
+    -- 创建子表 variety_tick_price 并添加外键和索引
     IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'variety_tick_price') THEN
         CREATE TABLE variety_tick_price ( 
             id UUID DEFAULT gen_random_uuid_v7() PRIMARY KEY NOT NULL,
@@ -120,7 +138,12 @@ BEGIN
         FOR EACH ROW
         EXECUTE FUNCTION update_data_modified_column();
         
-        RAISE NOTICE 'created variety_tick_price table, trigger and foreign key';
+        -- 子表索引：外键+deleted组合索引
+        CREATE INDEX idx_variety_tick_price_variety_id_deleted ON variety_tick_price(variety_id, deleted);
+        -- 价格范围查询索引
+        CREATE INDEX idx_variety_tick_price_price_deleted ON variety_tick_price(price, deleted);
+        
+        RAISE NOTICE 'created variety_tick_price table, trigger, foreign key and indexes';
     ELSE
         RAISE NOTICE 'variety_tick_price table already exists';
     END IF;
@@ -139,17 +162,16 @@ BEGIN
     -- 创建或更新视图
     CREATE OR REPLACE VIEW variety_info_view AS
     SELECT
-        v.id AS variety_id,          -- 品种主表唯一ID
-        vn.name AS name,             -- 品种名称（来自variety_name）
-        vc.code AS code,             -- 品种代码（来自variety_code）
-        vt.tick AS tick,             -- 品种跳点（来自variety_tick）
-        vtp.price AS tick_price      -- 跳点价格（来自variety_tick_price）
+        v.id AS variety_id,
+        vn.name AS name,
+        vc.code AS code,
+        vt.tick AS tick,
+        vtp.price AS tick_price
     FROM
         variety v
-    -- 左连接：确保主表存在时，即使子表无数据也保留记录（避免数据丢失）
     LEFT JOIN variety_name vn 
         ON v.id = vn.variety_id 
-        AND vn.deleted = FALSE  -- 子表筛选未删除数据（连接时过滤更高效）
+        AND vn.deleted = FALSE
     LEFT JOIN variety_code vc 
         ON v.id = vc.variety_id 
         AND vc.deleted = FALSE
@@ -160,9 +182,8 @@ BEGIN
         ON v.id = vtp.variety_id 
         AND vtp.deleted = FALSE
     WHERE
-        v.deleted = FALSE;  -- 主表筛选未删除的品种
+        v.deleted = FALSE;
 
-    -- 根据视图是否已存在输出不同提示
     IF view_exists THEN
         RAISE NOTICE '视图 variety_info_view 已更新';
     ELSE
@@ -171,4 +192,4 @@ BEGIN
 EXCEPTION
     WHEN OTHERS THEN
         RAISE NOTICE '处理视图时发生错误: %', SQLERRM;
-END $$;
+END $$;
\ No newline at end of file