The entreprise technological innovation capability depends on the level of tacit knowledge sharing. The enterprises tacit knowledge include technical element, cognitive element, experience element, emotional element and faith element. Tacit knowledge is the main body of enterprise knowledge with a priority.It is the basis and key to form the individual and enterprise innovation capability. Enterprises can share the tacit knowledge through the methods include trial of error, work with experts, create the environment for employees to exchange tacit knowledge, the innovative project team systems and promote conversion of tacit knowledge to explicit knowledge.