Abstract: In this paper, Jinqie No.1205 was used as the experimental material to study the effect of nitrogen-fixing bacterial fertilizer on the growth and yield of eggplant. The experiment was conducted 3 treatments, T1: nitrogen-fixing bacterial fertilizer +fertilizer, T2:fertilizer, T3: spray an equal amount of water as a blank.（CK）.Several characters such as plant height, stem thickness, leaf number, leaf area, fruit number, fruit weight, yield per plant, yield per mu were investigated in the harvest. The result showed: the use of bacterial fertilizer + chemical fertilizer can promote the growth of eggplant and increase the yield of eggplant. The effect is in oreder: T1＞ T2＞T3.