The optimization of agricultural machinery matching is particularly urgent for Sequentill Croping agricultural production in the three summer and harvesting, ploughing and sowing period. This article is based on the features of wheat-corn’s Sequentill Cropping processes, and with the minimum timeliness losses and operating costs as target to study agricultural machinery matching, uses the nonlinear plan to optimize agricultural instruments matching and identifies specific quantity and work data. The study is useful for fully exploiting the efficiency of the agricultural machinery and effectively using of agricultural machinery resources. It can provide decision-making evidence for the acquisition of agricultural machinery.