Cadmium(Cd)pollution in alkaline farmland soil has caused excessive Cd levels in agricultural products such as spring wheat，posing a threat to human health. It is urgent to ensure the safe utilization and remediation of contaminated farmland. Taking a Cd-polluted farmland in Inner Mongolia as the research object，the effectiveness of wheat safe planting techniques in reducing Cd levels and ensuring the quality of agricultural products were investigated，including soil application of biochar，bentonite，and foliar spraying of sodium dihydrogen phosphate，manganese-zinc micro-fertilizers，and their combination. The results showed that the content of Cd in wheat was decreased below the standard value of food contaminant when combined using foliar spraying and passivator. Among them，the combined remediation of soil application of biochar and foliar spraying of manganese-zinc micro-fertilizers reduced the grain cadmium content by 53.8%，compared to the control group. It reduced the Cd enrichment coefficient of wheat grains and effectively decreased the Cd content in the grains. The foliar spraying combined with the soil passivation，especially the simultaneous soil application of biochar and foliar spraying of manganese-zinc micro-fertilizers，could more effectively block the absorption and transportation of Cd by spring wheat. As a result，the content of Cd in the grains was reduced. Therefore，it is a technology worth promoting and applying in mildly Cd-polluted alkaline wheat fields.