The male sterile line BY used as the female parent was crossed with six inbred lines of Tagetes patula including K4,K8,K13,K15,K17,K30 andtwo Tagetes erecta including 9904 and 9906 in two consecutive years to study the application potential of the male sterile plant. Seed setting rate,the main qualitative and quantitative traits of the eight crosses were investigated. The results showed that the seed setting rates and germination rates of intra specific hybrids were relatively high in two years. The seed setting rate of hybrids between T. patula and T. erecta was extremely low due to the cross incompatibility. When T. patula+E26 was used as male parent,flower type of hybrids was determined by the male parent with double petal form and flower color was partial to red and orange. When T. erecta was used as male parent,flower type,petal form and flower color were similar to the female parent. All were cylindrical,lack of appreciation. Comparing the mean value of main traits,BY×K17 was an excellent combination with low plant height,small leaf blade,large flowers,long viewing period,high seed setting rate and germination rate. Both BY×K30 and BY×K8 had a good view because of large flowers and long viewing period. The results of over maleparent heterosis showed that when T. patula was used as male parent,the heterosis of other traits were positive except that of flower diameter (-0.64%). when T. erecta was used as male parent,the heterosis of other traits was based on characteristic of male parent except that of diameter of inflorescence. 