Abstract: In order to reduce the impact of subway construction on ground traffic and the environment, and create high-quality and high-standard subway construction quality, we focus on green, energy-saving and environment-friendly assembly technology research.Shapu Station of Phase II of Shenzhen Metro Line 12 adopts the prefabricated assembly construction technology to produce and manufacture components or parts in the factory, transport the prefabricated components to the project site, and then carry out "building block" assembly on the site.The results show that the introduction of prefabricated technology in Shapu Station has accelerated the industrialization, intelligent, green and low-carbon development process of subway construction, saved 1/4 to 1/3 of the construction period and reduced about 85%of manpower investment for the construction of Shapu Station.Assembled technology can not only effectively achieve green environmental protection, cost reduction and efficiency increase, but also help the optimization and upgrading of urban industry while improving the project quality and construction efficiency.It has many advantages in the promotion and application of subway construction.