The Function design of children library building should base on a design idea of multifactor,human oriented and opening,which is demonstrated through the function outline,function division and function streamline,creating a favorable atmosphere and surrounding to meet the requirements of contemporary development with children s characteristics.

Some problems should be paid attention to in the characteristic construction for children library,characteristic collected books,characteristic department setting and characteristic serving mode are three aspects take into account to meet educational need of children.

According to the development of thought and guiding principle, the educational function of children library enriches and changes continuously during various periods.

Based on practice,the paper discusses how to improve the information service in children library of our country in the new time.

The paper discusses that,in order to achieve sustainable development of juvenile library,the sense and mode of running library should be renewed once and for all.