Abstract: Based on the development and application of network aided teaching system,the model and method of the teaching process assessment are studied.The assessment system is developed for the teaching process by using hypertext preprocessor(PHP)technology,by using MySQL as the database platform,and by taking Linux as the server operating system.The system is applied to different subjects.The teacher of the course can design the system according to the specific teaching needs so as to add,reduce or modify the content at any time.The system mainly includes several levels routing practice,test and assessment,and also analyzes the functions of overall design of the system and the implementation of key technology.