The invention provides a restoration device for acid agricultural cultivated land soil and belongs to the technical field of soil restoration. The technical problems of low soil restoration efficiency, poor restoration effect and the like are solved. The restoration device for acid agricultural cultivated land soil comprises a frame and a plurality of wheels arranged on the frame, wherein a firstconveying groove and a second conveying groove are formed in the frame, one side of the first conveying groove is hinged to the frame, a first conveying belt is arranged in the first conveying groove,a movable frame is arranged below an output belt, the first conveying groove is connected with the movable frame through a telescopic assembly, the movable frame is connected with a lifting mechanismdriving the movable frame to lift, a collecting mechanism for excavating and collecting soil is arranged on the movable frame, and a connecting plate is fixed to the first conveying groove. The restoration device has the advantages of high soil restoration efficiency and good restoration effect.