This essay investigating outbound factors by theoretical planning behaviors approach which generate knowledge information sharing component to knowledge workers of IC Testing/Assembly plant. The external essence and factor is divided into Individual-Level Factors, Team-Level Factors and Organizational-Level Factors: Individual-Level factors including motives (Self-Interest factor and altruistic Factor), job satisfaction; Team-Level Factors should be complied with trust, leaderships; Organizational-Level Factors would be concluded with enterprise culture, management constitutions. Investigated objects would be focused on Walton Advanced Engineering Co.,Ltd., after sampling with the IT engineering, I have concluded with the following issues: 1. Self-Interest factor and job satisfactory factor would be greater influence than the altruistic Factor. 2. Leadership is a critical influencing factor in the knowledge sharing process. 3. Trust is an essential factor for knowledge sharing within a group. 4. Culture and reward system are the most influencing factor for knowledge sharing. 5. It is necessary to tie in administrative strategy to raise the wills to share knowledge. 6. Encouraging group members explode the nuclear tacit knowledge benefits a lot to individuals and overall group improvement and growth. 7. It is quite a challenge to enterprise to build the knowledge sharing mechanism. Hoping the conclusions above would benefit to those knowledge works related managers and knowledge owners to inherit and preserver the main essence of knowledge base for their working groups.