3 cultivars of C. hybridium and 1 cultivar of C. sinense were chosen to self-bred and cross-bred.21 fruits of 4 cross-combinations were attained successfully from 257 pollinated flowers of 10 combinations.The average fruit set was 8.1%.The mean fruit set of reciprocal cross between C. hybridium and C. sinense has little difference.The trends of fruit growth curve of each combinations were in essence the same.The ovaries inflated after pollination 10~12 days and the size of capsule tended to stable between 60 and 80 days.Most of fallen fruits dropped within 30 days after pollination,but some fallen fruits yellowed and dropped in mid-later growing period.The incoordination of parents' genetic material and the cultivation management were important factors to the fruit set.