In order to determine the effects of plant inducer on growth characters and yield of tomato plants, CTS,BABA and BTH were used as test materials, and three levels of each inducer were set for irrigation treatment. The results showed that the plant height, stem diameter, node number, initial flower node, branch angle, leaf weight, leaf thickness, fruit size, single fruit weight, yield, fruit sugar content and fruit density had no significant difference with CK, but had significant effect on other traits. Overall, the growth traits and early yield traits of treatment 2 were the best overall. Compared with CK, plant height decreased, stem diameter increased, node number and node spacing were medium in all treatments, which could increase the number of flowers per panicle. The fruit transverse diameter, vertical diameter and single fruit weight were the highest values of treatment（including CK）, which were 62.05 mm, 47.93 mm and 115.74 g, respectively. The fruit peel thickness, fruit hardness and density were slightly lower than CK.