The genetic diversity of 69 common bean germplasm resources was analyzed by SSR-PCR reaction system, and cluster analysis was carried out by UPGMA method. Seventeen pairs of SSR markers were detected and 55 allelic mutation loci were obtained, ranging from 2 to 5, with an average of 3.24 markers per pair. Seventeen pairs of primers had 17 polymorphic loci with 100% polymorphism. According to the cluster analysis results, the genetic similarity coefficient (GS) of the material ranged from 0.392 to 0.963, with an average of 0.659. 69 kinds of the beans seeds were divided into four groups at the genetic similarity coefficient of 0.67. This study inclined that the genetic diversity of kidney bean germplasm was rich.