In order to explore the heterosis of Beijing-You Chicken（Y） and Jilin-Huang chickens（H）,the reciprocal crossing F₁ population were developed in this experiment,in which the positive cross was Y male cross H female（Y♂×H♀） and the negative cross was H male mate Y female（H♂×Y♀）.The phenotype and growth traits were measured and the indexes of heterosis based on growth traits were calculated.The results of hybridization test showed the F₁ generation showed different appearance characteristics.The phenotype of HY F₁ population was similar Y,the rate crown feather was 70.71%,the rate of multi-toe was 73.74%,and the rate of tibial feather and toe feather were 88.89%.The growth traits comparison showed the F₁ population performances were closer to the female parent.This means YH was close to H and HY was close to Y on growth traits.In body size data,YH had better performance than HY.In all populations,YY had the largest tibia circumference value.The heterosis analysis displayed that YH performance was better than HY,and the weight heterosis rate of cross YH is 6.0334%.In conclusion,this study provided the theoretical evidence for breeding high-qualify chicken using Beijing Oil Chicken and Jilin yellow chickens.