[Purpose/significance]Under the background of knowledge-based economy, the “Internet plus” strategy for enterprise transformation has prevailed. The research of knowledge management keeping pace with the times improves the organizational thickness and depth in the Internet era, which undoubtedly has great significance. [Method/process] In this paper, based on the smile curve theory of the industry value chain, it is necessary to put forward the new concept of “knowledge plus” strategy on knowledge management in the Internet era. With the analysis of the meaning of “knowledge plus”, the key strategies--“talent connected”, “business embedded”, and “organization empowered”--have been identified. Then, based on the case study about “knowledge plus” strategy exploration and implementation in enterprises, the results are validated through empirical practices.[Result/conclusion] The “knowledge plus” strategy is one of the important concepts and methods to enforce the organizational core competence in the Internet era. It is also a useful complement to the “Internet plus” strategy. Both strategies interact together and provide strong support for enterprise transformation and reformation to Internet.