Seed dormancy and seed weight were analyzed by using a Recombinant-inbred-lines (RIL) population from the cross between a no dormant parent Berken and a highly dormant wild parent ACC41. The RIL population were planted in Beijing and evaluated for their geminating energy, germinating percentage and 100-seed weight in the laboratory of CAAS. Software ICiMappingV1.3 was applied to detect the additive and epistatic QTLs. As a result, three QTLs on group 1 and 11 for geminating energy, four QTLs on group 1 and 11 for germinating percentage, five QTLs for 100-seed weight on group 2,8,9,11 were detected, explained 8.17%-12.14%, 4.34%-12.69% and 4.58%-10.36% of the phenotypic variations respectively. 26 pairs of interaction were detected, contributed 66.58%, 47.91%, 39.90% of the phenotypic variations respectively. In order to breed weather-tolerant mungbean varieties with large seeds, the relationship between seed dormancy and seed weight was analyzed and compared with previous research.