With the development and utilization of urban underground space, the capacity and efficiency oftraditional foundation pit monitoring method is difficult to meet the needs of future development.Many domestic design enterprisesare exploring new methods to seek for breakthrough.In this paper, the author proposes a new method and practice with a Project in Shanghai.This paper proposes a multi-dimensionalvisualizationmonitoring technology of the foundation pit, and the research and exploration are conducted through practice.