Abstract: In order to introduce and screen new varieties of cowpea with good quality and high yield,the comparative test for six varieties and one local variety was designed by random grouping and three times of repetition.Mainly agronomic traits and quality and yield characteristics of cowpea were determined.It mainly analyzed the correlation between quality characters and yield of cowpea.It could provide reference for cowpea directional breeding and variety screening.The results showed that the difference on cowpea mainly agronomic traits of each type was obviously,the first flowering node in addition to the"Special 903",and contrast difference significantly,the number of branches per plant of"Selected 901"was the most,and comparison and variety show significant difference,the single pod quality"Selected 901"was largest,the pod length"Green cowpea 909"was the longest,the pod width"special 903"was the narrowest,with significant difference.there was positive correlation between cowpea protein vitamin C,protein content and yield traits,and the correlation between vitamin C content and yield characteristics reached extremely significant level,the correlation coefficient was 0.833 547.The results also showed negative correlation between soluble sugar,crude fiber content and yield characteristics,and absolute r4＞r1＞r3＞r2,showed that high correlation between protein vitamin C,protein content and yield traits,and low correlation between soluble sugar,crude fiber and yield traits.In cowpea breeding work,the yield can be selected synchronously with the content of protein and vitamin C.