Abstract: Abstract:Based on the data statistical analysis,correlation analysis and grey relational analysis method,27 varieties were used to explore the correlation of agronomic traits and yield on mung bean.The results showed that variable coefficient of different traits vary widely,they arrange from big to small as follows:branch number of main stem,pods of per plant,grain weight of per plant,yield,later growth stage,plant height,hundred-seed weight,growth days,earlier growth stage,pitch number of main stem,grain number of per pod,pod length.Test of significance showed that mung bean yield was significantly positively correlated to pods of per plant,grain weight of per plant,later growth stage,branch number of main stem,growth days as well as grain number of per pod these 6 agronomic traits,positively correlated to pod length and earlier growth stage,while it was significantly negatively correlated to hundred-seed weight.The correlation degree of agronomic traits and yield in mung bean from big to small was pods of per plant,grain weight of per plant,later growth stage,branch number of main stem,growth days,grain number of per pod,earlier growth stage,pod length,plant height,pitch number of main stem and hundred-seed weight sequentially.On the whole,in order to generate high-yielding mung bean,plants that having more pods and pitches,higher grain weight and longer later growth stage should be selected,so as to provide more suitable mung bean variety for northwestern Shandong province.