diff --git a/fi/signal.go b/fi/signal.go
index 2c32851..47cba7f 100644
--- a/fi/signal.go
+++ b/fi/signal.go
@@ -2,6 +2,7 @@ package fi
 
 import (
 	"fmt"
+
 	"joylink.club/ecs"
 	"joylink.club/rtsssimulation/component"
 	"joylink.club/rtsssimulation/component/component_proto"
@@ -44,6 +45,31 @@ func UpdateSignalLightFault(w ecs.World, signalId string, light component_proto.
 	return r.Err
 }
 
+// 更新信号机灯丝断丝故障
+func UpdateSignalFaultDS(w ecs.World, uid string, light []component_proto.Light_Color) error {
+	r := <-ecs.Request[ecs.EmptyType](w, func() ecs.Result[ecs.EmptyType] {
+		wd := entity.GetWorldData(w)
+		signalEntry, ok := wd.EntityMap[uid]
+		if ok {
+			lights := component.SignalLightsType.Get(signalEntry)
+			// 先清除所有故障
+			for _, e := range lights.Lights {
+				e.RemoveComponent(component.LightFaultDsType)
+			}
+			// 设置故障
+			for _, light := range light {
+				lightEntry := component.SignalLightsType.Get(signalEntry).GetLightByColor(light)
+				if lightEntry == nil {
+					return ecs.NewErrResult(fmt.Errorf("信号机[%s]没有色灯[%d]", uid, light))
+				}
+				lightEntry.AddComponent(component.LightFaultDsType)
+			}
+		}
+		return ecs.NewOkEmptyResult()
+	})
+	return r.Err
+}
+
 // SignalLightDrive 当没有电路时，直接驱动信号机灯位上的灯
 // ldLights : 需要亮的灯;当为空时则信号机所有色灯灭灯
 func SignalLightDrive(w ecs.World, signalId string, ldLights ...component_proto.Light_Color) error {