In order to study the effect of atmospheric pressure plasma on eggplant(Solanum melongena L.)growth and yield,the eggplant seeds were treated by equipment with different voltage from 4 420 to 6 800 V.The results showed that the plant height,plant extent,root length,root extent,single fruit weight and length etc.indexes were greater than the check(CK).In addition，the morbidity of eggplant cyanosis after treatment were lower than that of the control and the total yield were higher than the check.The highest yields were reached by the fifth,sixth and seventh treatments.Their yields were 11.59 %,11.0 % and 10.03 % than the check,respectively.