[Objective] This paper studied the infiltration process and infiltration parameters of the Dagu River aeration zones in the seasonal river, and established a suitable model for describing the seasonal river infiltration.[Methods] Based on the experimental data of vertical infiltration of 3 representative rivers on the upper, middle and lower reaches of Dagu River, Horton model, Kostiakov model and Philip model were fitted by Matlab software, the infiltration parameters were obtained, and the suitability of the infiltration model was evaluated.[Results] ① In the upper, middle and lower reaches, with the successive decreases of sand porosity, particle size, permeability coefficient, dry bulk density increased correspondingly, and the steady infiltration rate decreased, with rates of 0.006 6, 0.004 1, 0.002 5 cm/s. ② The Isqcurvefit function in Matlab software was applied to obtain infiltration parameters of infiltration model. ③ The Horton model had the highest fitting coefficients for the infiltration process of the upper, middle and lower reaches of the river bed.[Conclusion] The Horton model performed the best in the simulation of infiltration process, and the model parameters have virtual physical meaning, and can be used to describe the infiltration process of seasonal river bed.