[Objective] In order to increase soil moisture conservation in arid and semi-arid areas of China.[Methods] Field experiment combined with indoor analysis was conducted in fluvo-aquic soil(clay) and cinnamon soil(loam) in North Central Shanxi Province.[Results] Subsoiling tillage broke the plow layer, significantly reduced soil bulk density at 10-30 cm soil layer and regulated soil porosity, including increasing soil total porosity, capillary porosity and non-capillary porosity at 10-30 cm soil layers on clay soil. Moreover, soil total porosity and capillary porosity at 10-30 cm soil layer, non-capillary porosity at 20-30 cm soil layer on loam soil were increased. Subsoiling tillage improved soil solid, liquid and gas phase conditions at 20-30 cm soil layer both on clay and loam. Subsoiling tillage with straw incorporated further optimized the farming environment, significantly reduced crust thickness and compaction of surface soil on the jointing stage of maize.[Conclusion] Subsoiling tillage with straw incorporated and subsoiling tillage can alleviate soil hardening conditions of the farming ground and increased rainfall infiltration.