This paper mainly discusses the descriptions of the metadata of network resources in subject gateway.

Subject gateway is a sort of vertical portals,and its developing trends are as follows:integrated development of information resources in the gateway;collaboration development of information services among gateways;the forming of gateway to subject gateways,namely "meta subject gateway";and the shaping of "user-centered"idea which is impenetrated in the whole developing process of subject gateway.

The paper briefly introduces the definitions and characteristics of subject gateways.

From the perspective of the institute library,this article analyzed the characteristics of the scientific users information demands and established the new personal literature resource guarantee modes with their different needs as the goal.

0,and put forward some ideas of information resource organization for interactive subject gateways.

The Reach about the Construction of Chinese Subject Information Gateway;

This paper briefly introduces the concept of subject information gateway,analyzes the shortcomings of the traditional subject information gateway and puts forward methods to improve the establishment of subject information gateway based on library 2.

Starting from the connotations and features of the subject information gateway, this paper introduces the general development situation of domestic and foreign subject information gateway, and introduces the construction process and preliminary achievements of the chemistry subject information gateway in Chinese University of Mining &Technology library.