diff --git a/ats/verify/simulation/wayside/memory/wayside_memory_train.go b/ats/verify/simulation/wayside/memory/wayside_memory_train.go
index 542e6b1..7a2ac20 100644
--- a/ats/verify/simulation/wayside/memory/wayside_memory_train.go
+++ b/ats/verify/simulation/wayside/memory/wayside_memory_train.go
@@ -32,11 +32,12 @@ func AddTrainState(simulation *VerifySimulation, status *state.TrainState) {
 	status.Up = up
 	status.PointTo = pointTo
 	httpCode, _, err := dynamics.SendInitTrainReq(&dynamics.InitTrainInfo{
-		TrainIndex: uint16(trainIndex),
-		LinkIndex:  uint16(linkId),
-		LinkOffset: uint32(loffset),
-		Speed:      uint16(math.Round(float64(status.Speed * 10))),
-		Up:         status.Up,
+		TrainIndex:  uint16(trainIndex),
+		LinkIndex:   uint16(linkId),
+		LinkOffset:  uint32(loffset),
+		Speed:       uint16(math.Round(float64(status.Speed * 10))),
+		Up:          status.Up,
+		TrainLength: uint16(status.TrainLength),
 	})
 	zap.S().Debugf("添加列车：[%d-%s-%d]", trainIndex, status.HeadLinkId, status.HeadLinkOffset)
 	zap.S().Debugf("列车初始化：[%d-%d-%d]", trainIndex, linkId, loffset)
diff --git a/dynamics/httpData.go b/dynamics/httpData.go
index 70eba2d..d35916f 100644
--- a/dynamics/httpData.go
+++ b/dynamics/httpData.go
@@ -5,8 +5,9 @@ type InitTrainInfo struct {
 	LinkIndex  uint16 `json:"linkIndex"`
 	LinkOffset uint32 `json:"linkOffset"`
 	//单位0.1km/h
-	Speed uint16 `json:"speed"`
-	Up    bool   `json:"up"`
+	Speed       uint16 `json:"speed"`
+	Up          bool   `json:"up"`
+	TrainLength uint16 `json:"trainLength"`
 }
 
 // LineBaseInfo 线路基础信息，提供给动力学作为计算依据