This experiment used restriction method to evaluate the effects of dietary different crude protein levels on performance, reproductive performance and egg quality of broiler breeders. Two hundred and forty hens of 25-week-old S3 broiler breeders with similar body weight and laying rate were randomly divided into 4 groups with 6 replicates in each group and 10 hens in each replicate. Broiler in the control group were fed a corn-soybean meal basal diet (crude protein level was 16.64%), and the others were fed the experimental diets with different crude protein levels were 17.64%, 15.64% and 14.64%, respectively. The experiment lasted for 40 weeks. The results showed as follows:1) compared with the control group, in the whole laying period, the egg laying rate, average egg weight and daily egg mass in 17.64%, 15.64% and 14.64% crude protein groups were significantly decreased (P<0.05); the death and culling rate in 15.64% and 14.64% crude protein groups was significantly decreased (P<0.05), and the feed intake was significantly increased (P<0.05). 2) Compared with the control group, in the early period of laying, the fertilized rate in 15.64% and 14.64% crude protein groups significantly increased 9.7% and 7.9% (P<0.05), the embryonic death significantly reduced 26.1% and 24.3% (P<0.05), the hatchability significantly increased 15.8% and 20.6% (P<0.05). 3) In the whole laying period, the egg-shell strength in 15.64% and 14.64% crude protein groups was significantly higher than that in control group and 17.64% crude protein group (P<0.05), the egg yolk weight in 17.64%, 15.64% and 14.64% crude protein groups was significantly lower than that in control group (P<0.05). Therefore, 15.64% and 14.64% crude protein groups restriction can improve the performance, reproductive performance and egg quality of broiler breeders, and the 15.64% crude protein group has better effect.