Abstract: Objective The aim of this paper is to study the impacts of different field collocation patterns on the colonial canopy architecture character and yield character of mechanical harvesting cotton.Method The colonial canopy architecture character and yield character under different field collocation patterns were analysed.Result The results show that different configurations have significant impact on leaf-area-index (LAI).For LAI of cotton,the high to low sequence is a film match two drip irrigation tapes,a film match three drip irrigation tapes,a film match four drip irrigation tapes and a film match five drip irrigation tapes at full-boll stage.The sequence of the leaf inclination angle is a film match three drip irrigation tapes ＞ a film match six drip irrigation tapes ＞ a film match five drip irrigation tapes ＞ a film match four drip irrigation tapes.There is significant difference between a film match four drip irrigation tapes and a film match six drip irrigation tapes at full flowering stage.The highest and the lowest degrees of DIFN are a film match five drip irrigation tapes and a film match six drip irrigation tapes respectively at full-boll stage.A film match six drip irrigation tapes could make full use of the population dominance and increase the cotton yield.Conclusion Plant configuration mode of A film match six drip irrigation tapes could raise light energy utilization ratio,improve canopy structure and photosynthesis and also greatly improve the yield.