Because the soft soil foundation is easily affected by natural and environmental factors, its structural stability and firmness are low, and there are hidden dangers of settlement, which is not conducive to the safety of engineering construction. Therefore, based on the traditional soft soil foundation reinforcement technology, according to the principle of nail type two-way cement mixing pile, taking x construction project as an example, the soft soil foundation reinforcement technology is studied. Install vacuum pumping equipment to increase the effective stress of soft soil foundation; Combined with the bearing capacity of single pile and the principle of numerical simulation, the enlarged head size of nail type two-way cement mixing pile is designed; Through the construction of foundation drainage works and foundation reinforcement preloading works, the soft soil foundation reinforcement treatment is completed. The test results show that the settlement displacement and pore water pressure of soft soil foundation are effectively reduced after the soft soil foundation reinforcement technology proposed in this paper, and the overall reinforcement technology has high feasibility.