[Objective] We studied the effects of geotextile plus plastic film mulching method on soil moisture conservation and its durability in order to provide a scientific reference for further development of water-saving agricultural technologies in Weibei dryland regions of Shaanxi Province.[Methods] Due to the fact that plastic film is easy to weathering, poor durability, short service life, and the residual debris is harmful to the environment, while weed-blocking geotextile is high strength, weathering resistance, but poor water penetration, this study used a combination of geotextile plus plastic film mulching (plastic film below the geotextile) to monitor soil moisture in-situ for one year.[Results] ① Under both mulching and non-mulching conditions, the variations of soil moisture content showed a high-low-high trend with the increase of soil depth. ② Under geotextile plus plastic film mulching conditions, the daily average soil moisture at 15, 30, and 50 cm depths increased by 11.2%, 8.0%, and 5.3%, respectively, compared to the bare soil area. ③ The impacts of limited rainfall on soil moisture were mainly reflected in the top 15 cm depth in the bare soil area, but extended to 30 cm depth in the mulched area. ④ During the experimental period, the properties of the geotextile was well preserved. The plastic film covered by the geotextile was also intact, similar to its initial state, except for the exposed edge areas that was fragmented due to weathering.[Conclusion] The geotextile plastic film mulching method not only showed advantages in water conservation and weed control, but also effectively extended the life of plastic film.