Soil erosion is t he first and most important problem to a highway construction project.Usually,highway construction units do riot carry out soil and water conversion supervision, so implementing the supervision is very essential to highway engineering.Meanwhile it is proved to be feasible from theory or prac- tice.The program of implementing soil and water conversion supervision in highway engineering should in- elude establishing standards and regulations, deciding operation model, drawing up operation program, mak- ing management ways and working systems, and determining the major contents of supervision.