Education info is an important content in education reformation.In order to accommodate to open studying, improve the preparation in experiment teaching, Internet-based education system model for college physical experiment is set up by means of character of the teaching of college physical experiment, a booking mechanism which is conditioned by preparation test is proposed.The algorithm and Experiment result of self-generating test papers which based on test-points and does not include same question is given for preparation test. A new method is proposed to improve the efficiency of preparation.