In the new century,during the enrollment of HEIs,there appears such phenomena as examinees increasing continuously,the entrance to prestigious universities competing severely,the registering rate of new students decreasing and the enrollment scale becoming steadily.

Cost-benefit analysis about college expansion plan;

College Expansion and Evaluation Model Based on Particle Swarm Optimization;

A comprehensive evaluation on college expansion and some advice are put forward.

After university enrollment expansion,the rapid increased number of students and service workers and the frequent flow of teachers bring out many difficulties and problems for the work of "birth control" in universities.

The university enrollment expansion changes the overall situation of college entrance examination,which used to mainly function as social classification and now plays an educational role in encouraging examinees to develop a healthy personality.

Application of Digital Signature Technology in College Recruitment Students;

This paper has analyzed the current situation of enrollment expansion and its effect on the universities and put forward countermeasures.

In fact,the enrollment expansion shows that higher education is constructing the popularization.