Cabbage(Brassica oleracea L.var.capitata)is an important cole crop which is grown all around the world.It plays significant role in the human diet for supplying mineral nutrients,crude fiber and vitamins.However,the head of cabbage is vulnerable to crack in the later stage of vegetative growth.Quality of appearance,yield,storability,and mechanical harvest were seriously affected by this.Therefore,tolerance to head splitting is undoubtedly the most useful properties of cabbages.Resistance to head splitting in newly developed varieties has become a priority in cabbage breeding programs.To study the inheritance of resistance to head splitting in cabbage,a population of doubled haploid lines(155 in 2011 and 180 in 2012)derived from the cross between susceptible head splitting inbred line 79-156 and resistant line 96-100 was analyzed using the mixed major genes and polygenes inheritance model in two years.The head splitting index was scored 15 days after maturity to indicate the resistance to head splitting.The results of the two consecutive years showed that the resistance to head splitting was compatible with the mixed 3 major genes and polygenes(model G-0).The additive effect for the 3 major genes was foremost while there was some interaction effect between them.In 2011,the heritability of major genes was estimated to be 92.50%,and the heritability of polygenes was 4.80%.Similar results were observed in 2012.The heritability of major genes and polygenes were 91.20%and 4.20%,respectively.It indicated that the trait of resistance to head splitting in cabbage was dominated by major genes.In practical breeding,high hereditability of major genes can be favorable to an efficient selection in early generation.