Aiming at the problem of how to improve the gully land consolidation soil poor structure in the Loess Plateau, the vertical one-dimensional stable water potential infiltration experiments were conducted to explore the effects of different organic materials (bio-organic fertilizer, crushed straw, 50% crushed straw + 50% bio-organic fertilizer, Urea, CK) on gully land consolidation soil's wetting front movement, cumulative infiltration, infiltration rate, and soil water evaporation characteristics. Green-Ampt model, Philip model and Kostiakov model were used to fit and analyze the regularity of soil moisture infiltration. The results showed that: (1) Crushed straw and bio-organic fertilizer both reduced the soil water movement rate and enhanced soil water holding capacity; crushed straw simultaneously reduced the soil stable infiltration rate, which was 17.65% lower than CK. (2) There was a good linear relationship between wetting front depth and the cumulative infiltration; by fitting the three infiltration models, it was found that the Philp model and Kostiakov model had the best fitting effect, which were more in line with the Dynamic relationship between soil infiltration rate with time in gully land consolidation soil on the Loess Plateau. (3) In the process of soil water evaporation, adding crushed straw had a positive effect on blocking and accumulating soil moisture and increasing soil water content.