Abstract:The soft soil is widely distributed in China. So it is considered to give full play to the characteristics of soft soil areas, learn from each other and carry out the research on infiltration promotion technology. Through the laboratory model test, the influences of different radius and depths and water flows of sand well on the infiltration head line are studied. At the same time, based on the test conditions, the simulation and analytical analysis of the infiltration promotion formula are carried out. The results are in good agreement with the test. Finally, based on the above analysis and calculation, the submergence level of actual engineering is calculated. Combined with the infiltration technology, the suggestions on the selection of shrubs, trees and other plants are given, which can provide reference for similar projects.