diff --git a/backend/prompt.md b/backend/prompt.md
index d1d8c00..37afb24 100644
--- a/backend/prompt.md
+++ b/backend/prompt.md
@@ -113,7 +113,6 @@ updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
 1、看一下./sql/07_variety.sql的内容，并记住这些内容。
 2、打开./src/logic4variety/create.go，并维持风格不变的前提下，将业务调整为1中的信息。
 ---
----
 1、看一下./sql/07_variety.sql的内容，并记住这些内容。
 2、打开./src/logic4variety/delete.go，并维持风格不变的前提下，将业务调整为1中的信息。
 ---
\ No newline at end of file
diff --git a/backend/src/logic4variety/delete.go b/backend/src/logic4variety/delete.go
index 5bcb55a..4024699 100644
--- a/backend/src/logic4variety/delete.go
+++ b/backend/src/logic4variety/delete.go
@@ -1,5 +1,5 @@
 
-package logic4exchange
+package logic4variety
 
 import (
 	"asset_assistant/db"
@@ -13,7 +13,7 @@ import (
 
 // DeleteRequest 删除请求参数结构
 type DeleteRequest struct {
-	ExchangeID string `json:"exchange_id" binding:"required"` // 交易所ID，必填
+	VarietyID string `json:"variety_id" binding:"required"` // 品种ID，必填
 }
 
 // DeleteResponse 删除响应结构
@@ -31,7 +31,7 @@ func DeleteHandler(c *gin.Context) {
 		zap.L().Debug("✨ 生成新的请求ID", zap.String("req_id", reqID))
 	}
 
-	zap.L().Info("📥 收到交易所删除请求",
+	zap.L().Info("📥 收到品种删除请求",
 		zap.String("req_id", reqID),
 		zap.String("path", c.Request.URL.Path),
 		zap.String("method", c.Request.Method),
@@ -46,14 +46,14 @@ func DeleteHandler(c *gin.Context) {
 		)
 		c.JSON(http.StatusBadRequest, DeleteResponse{
 			Success: false,
-			Message: "请求参数错误：exchange_id为必填项",
+			Message: "请求参数错误：variety_id为必填项",
 		})
 		return
 	}
 
 	zap.L().Debug("✅ 请求参数验证通过",
 		zap.String("req_id", reqID),
-		zap.String("exchange_id", req.ExchangeID),
+		zap.String("variety_id", req.VarietyID),
 	)
 
 	// 开启数据库事务
@@ -90,29 +90,45 @@ func DeleteHandler(c *gin.Context) {
 		}
 	}()
 
-	// 1. 更新exchange表
-	_, err = tx.Exec("UPDATE exchange SET deleted = TRUE WHERE id = $1", req.ExchangeID)
+	// 1. 更新variety表
+	_, err = tx.Exec("UPDATE variety SET deleted = TRUE WHERE id = $1", req.VarietyID)
 	if err != nil {
 		tx.Rollback()
-		zap.L().Error("❌ exchange表更新失败",
+		zap.L().Error("❌ variety表更新失败",
 			zap.String("req_id", reqID),
-			zap.String("exchange_id", req.ExchangeID),
+			zap.String("variety_id", req.VarietyID),
 			zap.Error(err),
 		)
 		c.JSON(http.StatusInternalServerError, DeleteResponse{
 			Success: false,
-			Message: "删除交易所记录失败",
+			Message: "删除品种记录失败",
 		})
 		return
 	}
 
-	// 2. 更新exchange_name表
-	_, err = tx.Exec("UPDATE exchange_name SET deleted = TRUE WHERE exchange_id = $1", req.ExchangeID)
+	// 2. 更新variety_exchange表
+	_, err = tx.Exec("UPDATE variety_exchange SET deleted = TRUE WHERE variety_id = $1", req.VarietyID)
 	if err != nil {
 		tx.Rollback()
-		zap.L().Error("❌ exchange_name表更新失败",
+		zap.L().Error("❌ variety_exchange表更新失败",
 			zap.String("req_id", reqID),
-			zap.String("exchange_id", req.ExchangeID),
+			zap.String("variety_id", req.VarietyID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, DeleteResponse{
+			Success: false,
+			Message: "删除交易所关联信息失败",
+		})
+		return
+	}
+
+	// 3. 更新variety_name表
+	_, err = tx.Exec("UPDATE variety_name SET deleted = TRUE WHERE variety_id = $1", req.VarietyID)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ variety_name表更新失败",
+			zap.String("req_id", reqID),
+			zap.String("variety_id", req.VarietyID),
 			zap.Error(err),
 		)
 		c.JSON(http.StatusInternalServerError, DeleteResponse{
@@ -122,29 +138,13 @@ func DeleteHandler(c *gin.Context) {
 		return
 	}
 
-	// 3. 新增：更新exchange_short_name表（软删除短名称记录）
-	_, err = tx.Exec("UPDATE exchange_short_name SET deleted = TRUE WHERE exchange_id = $1", req.ExchangeID)
+	// 4. 更新variety_code表
+	_, err = tx.Exec("UPDATE variety_code SET deleted = TRUE WHERE variety_id = $1", req.VarietyID)
 	if err != nil {
 		tx.Rollback()
-		zap.L().Error("❌ exchange_short_name表更新失败",
+		zap.L().Error("❌ variety_code表更新失败",
 			zap.String("req_id", reqID),
-			zap.String("exchange_id", req.ExchangeID),
-			zap.Error(err),
-		)
-		c.JSON(http.StatusInternalServerError, DeleteResponse{
-			Success: false,
-			Message: "删除短名称信息失败",
-		})
-		return
-	}
-
-	// 4. 更新exchange_code表
-	_, err = tx.Exec("UPDATE exchange_code SET deleted = TRUE WHERE exchange_id = $1", req.ExchangeID)
-	if err != nil {
-		tx.Rollback()
-		zap.L().Error("❌ exchange_code表更新失败",
-			zap.String("req_id", reqID),
-			zap.String("exchange_id", req.ExchangeID),
+			zap.String("variety_id", req.VarietyID),
 			zap.Error(err),
 		)
 		c.JSON(http.StatusInternalServerError, DeleteResponse{
@@ -154,12 +154,44 @@ func DeleteHandler(c *gin.Context) {
 		return
 	}
 
+	// 5. 更新variety_tick表
+	_, err = tx.Exec("UPDATE variety_tick SET deleted = TRUE WHERE variety_id = $1", req.VarietyID)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ variety_tick表更新失败",
+			zap.String("req_id", reqID),
+			zap.String("variety_id", req.VarietyID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, DeleteResponse{
+			Success: false,
+			Message: "删除最小变动价位信息失败",
+		})
+		return
+	}
+
+	// 6. 更新variety_tick_price表
+	_, err = tx.Exec("UPDATE variety_tick_price SET deleted = TRUE WHERE variety_id = $1", req.VarietyID)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ variety_tick_price表更新失败",
+			zap.String("req_id", reqID),
+			zap.String("variety_id", req.VarietyID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, DeleteResponse{
+			Success: false,
+			Message: "删除最小变动价位金额信息失败",
+		})
+		return
+	}
+
 	// 提交事务
 	if err := tx.Commit(); err != nil {
 		tx.Rollback()
 		zap.L().Error("❌ 事务提交失败",
 			zap.String("req_id", reqID),
-			zap.String("exchange_id", req.ExchangeID),
+			zap.String("variety_id", req.VarietyID),
 			zap.Error(err),
 		)
 		c.JSON(http.StatusInternalServerError, DeleteResponse{
@@ -171,9 +203,9 @@ func DeleteHandler(c *gin.Context) {
 
 	// 记录请求处理耗时
 	duration := time.Since(startTime)
-	zap.L().Info("✅ 交易所删除请求处理完成",
+	zap.L().Info("✅ 品种删除请求处理完成",
 		zap.String("req_id", reqID),
-		zap.String("exchange_id", req.ExchangeID),
+		zap.String("variety_id", req.VarietyID),
 		zap.Duration("duration", duration),
 	)