Based on the evolution theory,we envelop the knowledge speciality,technology opportunity and absorb capacity to disclose the process of the endogenous technology innovation,which will do some favour to our enterprises.

The style,number and number of joint and crossover of complex strokes were accumulated,and a kind of characteristic knowledge data-base table of handwritten Chinese characters was constructed.

This paper puts the influential factors to knowledge sharing into four aspects,which are knowledge characteristics,organizational facts,personal facts and technological facts,and analysis the mechanism of each fact on knowledge sharing.