Through a four-year field positioning experiment, the effects of different maize straw returning modes on soil physical properties and maize yield in the black soil plough layer（0-40 cm） were explored. five treatments were set up: no straw returning（CK）, continuous straw mulching（SCR）, one-year moldboard return + one-year rotary tillage（MBR/RTS）, moldboard return（MBR） and straw mulching（strips）+straw mulching（strips）+moldboard return（SC/SC/MB）.The results show that: In this study, compared with CK, SCR, SC/SC/MB and MBR treatments in 0-10, 0-20, 10-30 cm soil layers significantly reduced soil bulk density, compared with solid-phase control, and increased soil porosity, capillary porosity, field water capacity and saturated water content. Three of the treatments significantly increased the average soil porosity and field water holding capacity of the corresponding soil layers by 5.53%and 13.5%, 4.87% and 16.2%, 12.3% and 16.9%, respectively. The maize yields of SC/SC/MB and MBR treatments were significantly higher than those of other treatments, reaching 11.0% and 10.9% respectively. In conclusion,strip tillage and deep tillage combined with straw returning can improve the physical properties of the corresponding soil layers and increase the yield of maize.