diff --git a/internal/logic/contract.go b/internal/logic/contract.go
index f8f52cd..0b0c541 100644
--- a/internal/logic/contract.go
+++ b/internal/logic/contract.go
@@ -110,7 +110,8 @@ func validateCyclePeriods(periods []int32, cycleName string) (string, error) {
 		return msg, errors.New(msg)
 	}
 	if len(periods) == 0 {
-		return "", nil
+		msg := cycleName + "至少有1期"
+		return msg, errors.New(msg)
 	}
 	periodSet := make(map[int32]bool)
 	for _, p := range periods {