Abstract: Subsoiler is one of the tillage equipment in modern agricultural production, which has significant characteristics of protective tillage machinery, and its application is conducive to improving the quality of agricultural cultivated land in China and promoting bumper yields. In order to further improve the rationality of the subsoiler operation, the quality optimization methods and methods of the mechanical operation process are explained from the perspective of production practice, and the precautions and problems in the production process are summarized, hoping to promote the optimization and improvement of the quality of the subsoiling operation.