Abstract: The forst heaving process is the potential danger for the foundation support engineering over winter in northern China. Based on the soil nailing wall engineering over winter in Beijing, the influence of frost heave force to its stability was analyzed. Results show that the horizontal displacement of frost heave soil induced by frost heave is more than the one of weak frost heave soil, the change of soil nail's tension induced by frost heave is more than the one of weak frost heave soil.