Abstract: Eleven Varieties of Mung Bean were used in this study to conduct a analysis on main economics characters relevant to grain yields.The results show that： increase of plant pod numbers and improvement of plant height was advantageous to increase of grain yields.Grain yields was improved with increase of days of flowering to bearing pods.Grain yields was reduced with increase numbers of first branchy stem. Reduction of days of bearing pods to ripening was advantageous to increase of grain yields.Betwee grain yields and others characters was small relations.and selecting height plant and increasing numbers of bearing pod was effective ways to improve grain yields.To increase days of flowering to bearing pods could improve grain yields.To reducing days of bearing pods to mature period and numbers of first branchy stem could indirectly improve grain yields. Varieties of mun~ beans nlantin~ in the .linbei area was suitable for Zhen~lv No.9.Tao 9947-6.Fenlvdnu Nn_2.