In this study, genetic diversity of 78 traditional mungbean varieties of North china were analyzed by 39 SSR molecular markers, total 104 allelic variations were detected with an average of 2.74. The polymorphic information content (PIC) of ed materials detected by different primers varied from 0.03 to 0.58 with an average of 0.26. The analysis of mungbean resources from 4 geographic origin indicated that Inner Mongolia was the most diversity region of traditional mungbean resources ,with the highest allelic variation and PIC value, and the second was Zhangjiakou of Hebei province. Cluster analysis showed that germplasm from Zhangjiakou of Hebei province and Datong of Shanxi province were the first group, and those from Inner Mongolia and Baicheng of Jilin province were the second group.