Abstract: In order to improve the operation efficiency of the corn harvester in China, the object-oriented software design-development method and thinking were adopted to carry out the feasibility optimization design for its operation system.Based on the operation mechanism of the whole machine, and the ETL technology and object-oriented design method were integrated, and then the system was divided into different objects for the system modeling. Though constructing a complete operation system, the feasibility verification test was carried out, which showed that: after the object-oriented design optimization, the data redundancy of the corn harvester system could be reduced to less than 10%, and the automatic alignment rate of line spacing and the harvest positioning accuracy also could be reduced to 93.70% and 92.25% respectively; the operation efficiency and stability rate of the whole system could reach more than 90%, which verified the rationality and feasibility of the optimization design on the system, and this idea would provide some good reference value for the improvement of similar crop harvesting devices.