Severe deep soil desiccation seriously constrains the sustainable development of deep root vegetation in the Loess Plateau. However, it remains unclear whether frequent extreme precipitation events can alleviate the deficit of deep soil moisture. This study employs a combination of literature review and field resampling to investigate the impact of extreme precipitation events in 2021 on deep soil moisture deficits in typical artificial forest areas (apple and locust) in the Loess Plateau. The results indicate that: (1) In 2021, the extreme precipitation in Changwu (cumulative extreme precipitation of 524.5 mm) and Luochuan (cumulative extreme precipitation of 467.4 mm) can completely restore the soil dry layer of 2.2-6.8 m, with the lowest desiccation index recovering from 29.1% to 147%. (2) In the 14-year-old, 19-year-old, and 24-year-old apple orchards in Changwu, the recharge depth reached 10 m, with precipitation recharge amounts of 777.7 mm, 1513.1 mm, and 1301.4 mm, respectively. In the 19-year-old and 29-year-old apple orchards in Luochuan, the recharge depths were 6 meters and 10 meters, with precipitation recharge amounts of 388.4 mm and 459.9 mm, respectively. Due to the high contribution rate of extreme precipitation, even in normal water years, the 16-year-old apple orchard in Qingyang had a recharge depth of 10 meters, with a precipitation recharge amount of 619.7 mm.（3）Artificial forest land in Mizhi and Zichang areas is facing serious soil desiccation problems, resulting in a deep soil desiccation layer in the 1-10 meter vertical profile, with an average soil moisture content of less than 6.5%. In conclusion, extreme precipitation has the potential to recharge deep soil water, and the ability to alleviate soil desiccation is related to extreme precipitation. The research results provide a theoretical basis for the development trend of plantation in different areas of the Loess Plateau under the background of frequent extreme weather.