Forty-nine mung bean germplasms newly collected from Chongqing in the recent two years were analyzed based on their phenotypic data and evaluated on the resistance to fusarium wilt, which is a most serious disease in Chongqing and surrounding areas. The results showed that the genotypes of mung bean collected in Chongqing were rich in genetic diversity The genetic diversities of quantitative characters were ranked as: Number of pods per plant > Plant height > Node number of main stem > Number of branches > Bottom pod height > Pod width > Pod length > 100-seed weight > Flowering days > Number of seeds per pod > Maturing days > Emergence days, and the genetic diversities of qualitative characters were ranked as: Pod shape > Branching > Trilobate leaf shape > Seed shape > Seed coat glossiness > Growth habit and Podding habit > Mature pod color > Simple leaf shape > Flower color and Main stem hair color > Cotyledon color at emergence > Seed coat color > Young stem color. According to cluster analysis, the 49 genotypes were divided into 5 Groups: Group I of dwarf materials suitable for mechanization, Group II of large-seeded materials, Group III of yellow seed materials, and Group IV and Group V with potential for development of resistance to fusarium wilt. In the three-dimensional scatter diagram, the first three principal components have the 49 genotypes distributed roughly in two regions. The genotypes distributed in Region I were mostly of the erect type, while those distributed in Region II were mostly of the half sprawling type. Among the 49 genotypes, 9 mediumly resistant genotypes, 3 resistant genotypes and 1 highly resistant genotype were identified. This study provides a theoretical and germplasm basis for the development and better utilization of mung bean genetic resources and genes of resistance to fusarium wilt.