The invention belongs to the technical field of soil improvement, and discloses a method for removing heavy metal cadmium in soil of agricultural equipment and overcoming successive cropping obstacle. The method comprises: carrying out heavy metal content and component analysis on a soil sample; preparing a soil remediation agent based on the content of heavy metals in the soil and a soil component analysis result; applying the prepared soil remediation agent to the soil to be remediated, and subjecting the soil to rotary tillage, uniform mixing and leveling; irrigating the soil by using pre-treated underground water; and sowing restoration plants in the irrigated soil, and harvesting the plants. Environment-friendly materials such as activated carbon are combined with remediation plants for soil remediation, natural circulation of farmland nutrients can be promoted, the purpose of treating soil environmental pollution is achieved, source control over agricultural product safety is achieved, the quality safety level of agricultural products is comprehensively improved, the exchangeable amount of cadmium ions is reduced, the cadmium ions are stabilized, the form of heavy metal cadmium in facility agriculture soil is changed, the effectiveness of the heavy metal cadmium in the soil is reduced, and cadmium absorption of crops is reduced.