Abstract: In order to study the correlation between the yield and main agronomic traits of vegetable soybean, 23 vegetable soybean germplasms were used as the materials to analyze the grey relational grade between the standard pod yield, fresh pod yield and 11 main agronomic traits, thus to screen out the main factors affecting the standard pod yield and fresh pod yield of vegetable soybean, and provide theoretical basis for the breeding of vegetable soybean. The results showed that the order of the correlation between standard pod yield and main agronomic traits was ranked as follows: effective pod number per plant>effective branch number>pod weight per plant>double-seed pod number>node number of main sti>plant height>one-seeded pod number>fresh 100-seed weight>number of growing days>three-seed pod number>bottom pod height. The order of the correlation between fresh pod yield and main agronomic traits was ranked as follows: pod weight per plant>effective pod number per plant>plant height>effective branch number>double-seed pod number>one-seeded pod number>number of growing days>node number of main sti>bottom pod height>fresh 100-seed weight>three-seed pod number. It could be seen that the main traits affecting the yield of vegetable soybean were the effective pod number per plant, effective branch number, pod weight per plant and double-seed pod number. The main traits affecting the standard pod yield were the number of effective pods per plant, followed by the number of effective branches; while the main traits affecting the fresh pod yield were the pod weight per plant, followed by the effective pod number per plant.