Soft soil foundations are prone to large deformation, long settling time and difficult to predict under long-term repeated loading. Aiming at this problem, the one-dimensional consolidation analytical solution of soft soil foundation under rectangular and trapezoidal repeated loads is solved by the one-dimensional consolidation theory of K.Terzaghi. The soft soil under repeated loading is proposed by ABAQUS finite element software. Numerical analysis and prediction method for long-term consolidation deformation of foundation. This method is combined with engineering examples to analyze the long-term development and change of soft soil foundation settlement, pore pressure, effective stress and void ratio under repeated loading with time. It is found that the settlement is proportional to the horizontal loading time of repeated load; pore water The final development trend of pressure is to fluctuate around 0; the effective stress increases with the total number of loading times; the change of void ratio is related to soil depth, loading size and loading times, the simulated values, theoretical values and measured data under different load types are compared and analyzed, and the settlement curve under the equivalent repeated load was found to be in good agreement with the actual measurement.