Abstract: The relationship between the agronomic traits and yield of 28 mung bean varieties（lines） was comprehensively evaluated by correlation analysis and grey correlation analysis. The results showed that the growth period, plant height, node number of main stem and pod number per plant had significant positive correlation with yield. The correlation degree between different agronomic traits and yield were pod number per plant＞pod number＞100-seed weight＞node number of main stem＞branch of main stem＞pod length＞growth period＞plant height. Both of the two methods showed that pod number per plant had the greatest influence on yield. Therefore, pod number per plant should be given priority in breeding practice. At the same time, the two methods should be combined for comprehensive and objective evaluation of varieties.