diff --git a/modules/practice/api_practice.go b/modules/practice/api_practice.go
index 1776ea812..3305ca5b5 100644
--- a/modules/practice/api_practice.go
+++ b/modules/practice/api_practice.go
@@ -122,6 +122,19 @@ func (this *apiComp) Practice(session comm.IUserSession, req *pb.PracticePractic
 			return
 		}
 
+		if !utils.IsToday(room.Knapsack[req.Teacher].Lastusetime) {
+			room.Knapsack[req.Teacher].Usenum = 0
+		}
+
+		if room.Knapsack[req.Teacher].Usenum >= tconfigure.Limitation {
+			errdata = &pb.ErrorData{
+				Code:    pb.ErrorCode_ReqParameterError,
+				Title:   pb.ErrorCode_ReqParameterError.ToString(),
+				Message: fmt.Sprintf("the teacher:%s use to Limit", req.Teacher),
+			}
+			return
+		}
+		room.Knapsack[req.Teacher].Usenum++
 		if tconfigure.Race != heroconf.Race {
 			errdata = &pb.ErrorData{
 				Code:    pb.ErrorCode_ReqParameterError,
@@ -164,6 +177,21 @@ func (this *apiComp) Practice(session comm.IUserSession, req *pb.PracticePractic
 			}
 			return
 		}
+
+		if !utils.IsToday(room.Knapsack[req.Prop].Lastusetime) {
+			room.Knapsack[req.Teacher].Usenum = 0
+		}
+
+		if room.Knapsack[req.Prop].Usenum >= tconfigure.Limitation {
+			errdata = &pb.ErrorData{
+				Code:    pb.ErrorCode_ReqParameterError,
+				Title:   pb.ErrorCode_ReqParameterError.ToString(),
+				Message: fmt.Sprintf("the prop:%s use to Limit", req.Prop),
+			}
+			return
+		}
+		room.Knapsack[req.Prop].Usenum++
+
 		if pconfigure.Race != heroconf.Race {
 			errdata = &pb.ErrorData{
 				Code:    pb.ErrorCode_ReqParameterError,