The invention relates to a method that cement mixed soil curtain implants lateral force resistance pile of prefabricated reinforced concrete. Main procedures are described as follows. In construction site, cement mixer is used to mix soil in the whole journey or in upper water-stopping curtain part to form curtain along the implanting depth aiming to soil quality and soil extruding status; then it is implanted into pile body by pile driver to form retaining and waterproof enclosure wall. Thereinto pile body adopts prefabricated reinforced concrete T-shape/ I-shape pile. Because powerful mixing soil or drilling machine is used to dig hole and inject grout, it is suitable for enclosure project of all kinds of soil qualities in principle. The beneficial effect of invention is that reinforcement ribs of T-shape or I-shape section are located at two ends of section; compared with circular pile with reinforcement ribs distributed along round face, the bending strength can be improved by more than 20% and the section area only is half of corresponding circular pile, namely concrete amount is saved in half. Ant it is provided with rapid construction speed, reliable quality, no noise and no pollution to circumstance by carrying slurry out so on.