Focusing on ecological construction,ecological priority,three ecologies(ecological construction,ecological security and ecological civilization),and sustainable forestry development indicates the formation of the forestry concept characterized by forestry civilization.

Good professional ethics to building harmonious hospital and patient relationship;

This situation demands an acquisition librarian to undertake the following tasks: first, put himself in an appropriate role position; second, equip himself with the professional ethics which keeps abreast with the new tendency; third, possess a comprehensive quality.

This passage show that the librarian s social role and professional idea in this new century with high digital and network technology through comparing the traditional library and the new-century library.

The Social Role and Professional Ideals of the Librarian in the New Century;