The tiller rate, biological traits, yield and economic output of ten maize varieties was studied by the exper-iment of removing tillers and tillers retention. The results show that there was significant differences of the tillernumbers of different maize varieties. Removing tillers and tillers retention on the same maize varieties has no effectat the anthesis and silking growth stage, and it has no significant influence on the SPAD value of leaves, leaf area in-dex, dry matter weight, yield and composition factors. However, the output value per 667 m² of tiller removal was ob-viously smaller than tillers retention. The results of this study provide a strong the theoretical support to reduce theinput of maize production and improve the efficiency of maize production.