Currently, enterprises must thus adopt an open innovative business model to reduce innovation costs and the risks associated with new knowledge development. Therefore, enterprises must import new knowledge or technologies via knowledge trading or exchange. Therefore, the electronic method offers one of the best methods for trading and exchanging desired and complementary knowledge among enterprises. Existing EC business models are inappropriate for trading knowledge, especially collaboratively constructed knowledge. This study identifies the knowledge trading processes and designs a fair knowledge bidding process. The study can promote the development of innovative knowledge business models in future.