The 10 agronomic traits in 19 varieties of soybean have studied. The results showed as follows: 1) The ordinal genetic coefficient of variation were the number of branches, 100-seeds weight, Pods on stem, the height of lowest legume, seeds per plant, plant height, the seed weight per plant, node number, diameter of stem and the bearing term.2) There were significantly correlations between seed weight per plant and 100-seeds weight .The seed weight per plant is positively correlated with the height of lowest legume, number of branches, diameter of stem and seeds per plant; The seed weight per plant is negatively correlated with Plant height, Node number and Pods on stem.