This paper introduces the background of the graduation subject system based on Web, and elaborates the present situation of Web and various development technologies. It uses ASP.NET and SQL Server to deign and implement the function of subjects inquiring and searching, subjects modifying and deleting, subjects declaring, subjects monitoring by administrators, etc. These functions make the system more simplified and practical, thus strengthening the management of graduation design, improving the efficiency of the teachers, and reducing their workload.