Abstract: According to the contraction between good quality and high yield in the early stage of breeding of Rape seed, the breeding methods and thoughts of “Combined with plant style theory, pay attention to choose parent, using polymerization hybridization, pedigree selection in low generation, and group selection in high generation”, a group of new varieties of normal rapeseed of good quality and high yield was breed at the time of “the tenth five –year plan”. The outstanding characteristics of these new varieties were: high yield, exuberant vegetative growth at every stage, higher plant height, harmony production characteristics, abundance pods on every plant, the pod layer was similar to “huagai” style; better quality index; stronger resistance to diseases. And it was proved that, the proper use of polymerization breeding in the breeding of rapeseed breeding will benefit the increase of the yield and quality of rapeseed, and it was also proved that the yield level of normal rapeseed have a space of increasing.