Through indoor simulated rainfall experiment and water balance methods, the rainfall infiltration law of slope during thawing period was studied. The experimental treatments included 4 initial thawing depths (0, 2, 4 and 6 cm) and 3 rainfall intensities (0.6, 0.9 and 1.2 mm/min). The results showed that:(1) The infiltration process varied from high to low with the increase of rainfall duration. (2) The initial infiltration rate of slope surface was greatly affected by rainfall intensity. The initial infiltration rate under rainfall intensity of 0.9 mm/min was significantly higher than that of 0.6 mm/min (p<0.05), and the steady infiltration rate at different initial thawing depths was smaller than that at different initial thawing depth. The change trend of average infiltration rate and the steady infiltration rate decreased firstly and then increased with the increase of initial thawing depth and the critical thawing depth was 4 cm. The cumulative infiltration amount at the initial thawing depth of 6 cm was significantly larger than that at 0 cm, 2 cm and 4 cm, and the cumulative infiltration amount increased with the increase of thawing depth under the rainfall intensity of 0.6 mm/min. However, under the rain intensity of 0.9 and 1.2 mm/min, the critical thawing depth was 2 cm and 4 cm, which decreased first and then increased. (3) By using the Kostiakov,Horton, Jiang Dingsheng and Philip models to simulate the experimental results, it was found that Horton model could best reflect the characteristics of rainfall infiltration on slope during thawing period. These findings were expected to reveal the change mechanism of runoff production and soil erosion during the thawing period.