Abstract: Urban waterlogging is not only related to regional runoff, but also related to drainage capacity, so it is important to study drainage capacity for urban waterlogging prevention. Taking the Tianlin drainage system in Shanghai City, the urban plain area of the Yangtze River Delta, as a research object, Low Impact Development (LID) schemes were determined according to land use types, and the control effect of a combination mode of LID and rainwater pumps operations on the ponding in the drainage system was simulated and analyzed based on the SWMM model. The results showed that low scheme (green roof + rain bucket) could raise the regional drainage standard to 1-year return period only by transforming the green roof, adding rain buckets and not transforming the ground. Medium scheme (green roof + rain bucket + sunken greenbelt + infiltration pond) was based on low scheme, and the proportion of ground reconstruction was 16.7%, which could improve the regional drainage standard to 3-year return period. High scheme (green roof + rain bucket + sunken greenbelt + infiltration pond + grass swale + permeable pavement) was based on low scheme, and the proportion of ground reconstruction was 30%, which could improve the regional drainage standard to 4-year return period. The combined regulation mode of LID schemes and pumping operations could further control the regional ponding. When the start-up water level of rainwater pumps dropped to 1.0 m, medium scheme could raise the regional drainage standard to 4-year return period. When the start-up water level of rainwater pumps dropped to 2.0 m, 1.0 m and 0 m respectively, high scheme could raise the regional drainage standard to 5-year return period, 6-year return period and 7-year return period respectively. The combined regulation of LID and pump discharge could effectively meet the standard upgrading and reconstruction requirements of urban drainages. The research results can provide technical reference for sustainable transformation and ponding control of urban drainage system, and are of great significance for ensuring city water ecological safety.