Abstract: In light of the project profile, features and design management flow, this paper describes the optimized design, temporary works design, detailed design and technical management of the underground Section A of the KVMRT SBK Metro in Kuala Lumpur, Malaysia, during the implementation stage. Based on the similarities and differences of EPC project designs in China and abroad, it concludes that design plays an important role in international EPC projects and proposes requirements for the abilities and responsibilities of designers.