The morphological diversity and classification of 646 common bean (Phaseolus vulgaris L.) germplasm resources were conducted in Bijie Guizhou in 2015. The results showed that the morphological diversity was high among the accessions assessed in this study. A total of 367 variations were detected with an average of 8.34 variations and 0.63 Ht per phenotypic trait.The range of variation was from 2 to 31 and the range of PIC was from 0.02 to 0.91. Three principal components totally represented 44.21% of morphological diversity.The first, second and third principal component represented 17.53%,15.35% and 11.33% of morphological diversity respectively. Based on the morphological data, 646 accessions were clustered into 4 groups. Ⅰgroup showed the erect determinate growth habit , higher diversity and bigger seed mainly from the Andes gene pool. Ⅱgroup with the indeterminate growth habit, the lowest diversity, smallest seed size, mainly from the Mesoamerican gene pool. 335 accessions were clustered in Ⅲ group with the highest diversity, most of them showed the sprawl indeterminate growth habit , plant height was distributed widely with an average 180.27cm. Ⅳgroup with the sprawl indeterminate growth habit, the least plant branches and the highest plant height and the widest pod. 35 germplasms were identified with bigger seed size, more pods per plant, higher yields, longer and wider pod etc..