diff --git a/YLErpDAL/Modules/SwapModule/SwapRateService.cs b/YLErpDAL/Modules/SwapModule/SwapRateService.cs
index 518644e6..e016f5ed 100644
--- a/YLErpDAL/Modules/SwapModule/SwapRateService.cs
+++ b/YLErpDAL/Modules/SwapModule/SwapRateService.cs
@@ -310,28 +310,48 @@ namespace YLErp.Modules.SwapModule
                     
                     // 处理线下费率
                     var offlineRate = reader.GetString("线下费率");
+                    LogFactory.GetLogger("导入阶梯费率").Info($"第{rowIndex}行,原始线下费率值: '{offlineRate}', IsNullOrEmpty: {string.IsNullOrEmpty(offlineRate)}");
+                    
                     if (!string.IsNullOrEmpty(offlineRate))
                     {
+                        LogFactory.GetLogger("导入阶梯费率").Info($"第{rowIndex}行,线下费率非空,准备解析: '{offlineRate}'");
                         decimal rate = 0;
                         if (offlineRate.EndsWith("%"))
                         {
+                            LogFactory.GetLogger("导入阶梯费率").Info($"第{rowIndex}行,线下费率是百分比格式: '{offlineRate}'");
                             offlineRate = offlineRate.Replace("%", "");
                             if (decimal.TryParse(offlineRate, out rate))
                             {
                                 rate /= 100;
+                                LogFactory.GetLogger("导入阶梯费率").Info($"第{rowIndex}行,百分比解析成功: {offlineRate}% -> {rate}");
+                            }
+                            else
+                            {
+                                LogFactory.GetLogger("导入阶梯费率").Error($"第{rowIndex}行,百分比数值解析失败: '{offlineRate}'");
+                                rate = 0;
                             }
                         }
                         else
                         {
+                            LogFactory.GetLogger("导入阶梯费率").Info($"第{rowIndex}行,线下费率不是百分比格式: '{offlineRate}', 尝试直接解析");
                             // 如果不是百分比格式，直接尝试解析为小数
                             if (!decimal.TryParse(offlineRate, out rate))
                             {
                                 // 解析失败时的处理
-                                LogFactory.GetLogger("导入阶梯费率").Error($"第{rowIndex}行,线下费率解析失败:{offlineRate}");
+                                LogFactory.GetLogger("导入阶梯费率").Error($"第{rowIndex}行,线下费率解析失败: '{offlineRate}'");
                                 rate = 0;
                             }
+                            else
+                            {
+                                LogFactory.GetLogger("导入阶梯费率").Info($"第{rowIndex}行,直接解析成功: {offlineRate} -> {rate}");
+                            }
                         }
                         swapRate.OfflineRate = rate;
+                        LogFactory.GetLogger("导入阶梯费率").Info($"第{rowIndex}行,最终设置OfflineRate为: {rate}");
+                    }
+                    else
+                    {
+                        LogFactory.GetLogger("导入阶梯费率").Info($"第{rowIndex}行,线下费率为null或空字符串");
                     }
                     
                     ValidateSwapRate(swapRate);