Abstract: At present,the research on screw oil press at home and abroad mainly focuses on the oil penetration model,screw structure,bore and feeding device structure,wear resistance and so on.Based on the analysis of the working principle of the oil press and the related theory of the press,this paper compares the advantages and disadvantages of the mainstream screw oil press,and puts forward some suggestions for the development of the screw oil press,in order to provide a reference for the development of the screw oil press.