This paper introduces several typical concept and research methods of ontology,and emphasizes the method constructing university priority discipline with ontology.

It finds that the students from cities and from the top or middle class family background are much more centralized in the key schools, while the students from countryside and from the bottom-class family background are inclined to study at the ordinary schools.

It is helpful for improving the technical level and influence to strengthen the construction of key subjects.

Applying bibliometric methods,basing on the statistic analysis of the quantities,sorts,languages,and the chronological distributions of the key subjects master degree dissertations,this article studys the regularity and characteristic of the document utilization by the key subject master.

Meanwhile,specific methods and measures are also offered to help the construction of key subjects.

In front of new situation and new mission of war field and medical markct, Shenyang general hospital found out successful experience on promoting overall construction of hospital by key subjects.

The author analyzed the integrating process on core competition ability of key subjects of military medicine, and discussed from two aspects.

This paper expounds the advantages of professional reference room in serving the key subject construction,and analyzes the important function of professional reference room in the key subject construction.