Abstract:The paper is based on the Daye Highway Reconstruction Project, the paper compares and analyzes the common methods of soft soil roadbed treatment, and consider the effect of settlement control, the environmental protection requirements of the water source, and the project cost, to determine the treatment method suitable for the soft soil roadbed of this project. The research on the treatment method of soft soil roadbed behind abutment, provides a theoretical basis for the implementation of this project, and also provides a useful reference for the treatment of soft soil subgrade behind abutment in other projects.