This paper mainly introduces the work items needed for the electrified liquid feed and anti-corrosion seal of the body before the introduction of new model,and discusses and analyzes some of them,based on the research conclusions in this field and the mature theories accumulated in the daily work,this paper evaluates the body structure in the drawing model stage and makes Suggestions to ensure that there are no problems in the electrified fluid intake and anti-corrosion seal of the body.In this way,the evaluation of the body structure during the production preparation is standardized to a certain extent.