[Purpose / significance] China Asset Management Co., Ltd. (ChinaAMC) is one of the leading enterprises in the public fund industry. Guided by the innovative knowledge management concept and based on the advanced system technology, it fully collects all kinds of knowledge generated in the operation process of the company and applies it to customer service, operation management, investment operation and other businesses. It drives production with knowledge and creates value for customers, employees, shareholders and even the society Value. [Method / process] Taking customer service as an example, this paper introduced in detail the establishment of service knowledge system, system evolution, research and development of intelligent application in the past 12 years. [Result / conclusion] While explaining the construction and application of intelligent services, this paper expands to other knowledge applications from childhood, and provides reference solutions to some common problems in the development of enterprises.