[Purpose/significance] In recent years, technological advances have continuously changed the way buildings and planning are designed and delivered, the way the industry collaborates, and the way they benefit people, communities, and the environment. Today, disruptive technologies such as 5G, cloud computing, the Internet of Things, big data analytics and artificial intelligence are redefining how companies manage projects and operate efficiently. Knowledge management system also needs to change with the progress of science and technology to adapt to the new digital era environment. Meanwhile, efficient knowledge management system is also the key element to accelerate the digital transformation of enterprises.[Methods/process] By introducing how the new knowledge management system of Arup accelerates the digital transformation of the company in the digital environment, it was illustrated that efficient knowledge management is an important factor to promote the change management of the enterprise.[Result/conclusion] In this new digital age, knowledge management will be very different, and a new modern knowledge management system is a prerequisite and a key driver for the digital transformation of the entire organization. The knowledge management system should gradually evolve with the progress of technology and become more effective and diversified in order to meet the changes and strategies of different times, promote the reform of the company and provide more and more excellent technologies and services for clients.