Zhenfeng Chen (2010) recognized two main categories of Knowledge: explicit knowledge and tacit knowledge. According to the British philosopher Michael Polanyi, explicit knowledge mainly refers to the structure knowledge expressed by text, images and symbols, which can be taught verbally and learned by textbooks, reference materials, databases, etc. Tacit knowledge only exists in people's minds, which is difficult to express by words, symbols, images media. The management of explicit knowledge is relatively easy; you can use information systems, such as code and database to set knowledge base. The explicit knowledge is achieved through teaching, training. Its sharing depends on electronic information systems. The explicit knowledge is the basis for innovation. But the management of tacit knowledge is relatively more difficult. Tacit knowledge contains many knowledge cheats such as the work of know-how, experience, perspective and values, which implies more innovative ideas. These are the essence of the core competitiveness.