Abstract: Because of the complexity of the combined form of maize stubble and soil, it is difficult to design maize stubble harvester. The TRIZ innovation theory was applied to build "Substance-field models" of reaping and scouring maize stubble from land, the reaping mode which combined shoveling with propelling and the scouring mode which consisted of pressure field, gravity field, vibration field. In order to improve the system performance, the TRIZ conflicts resolving principles were adopted to solve physical contradictions and technical contradictions, which were used to design shoveling-propelling mechanism, rolling mechanism and screening conveyor device. At last, CAD technology was used to build corn stubble harvester virtual prototype, according to system function mode and innovative design, the test platform whose parameters can adjustable was established, which would lay the foundations of the future research.