Abstract: To comply with national requirements of accelerating industrial transformation and upgrading, and promoting green and low-carbon development, and solve the problems of low level of intelligence, low degree of information and communication construction, incoordination between decision-making and construction, low efficiency in contaminated site remediation, an intelligent platform for soil and groundwater remediation was constructed according to the thinking of "existing problems analysis, overall architecture design, and the application of key technologies" and in combination with new information technology (IT) and operational technology (OT). The platform was designed based on big data, intelligent control, Internet of things (IoT) and cloud computing, and made full use of new technologies including big data, IoT, cloud computing and intelligent control to solve the existing engineering problems, and could realize big data acquisition, big data exchange, cloud computing and digital twin simulation. Through multi-level digital transformation, it helped achieve the goal of soil and groundwater remediation in the whole process, and promoted the intelligent and low-carbon development of the industry.