The invention relates to a yam shallow planting method and a specialized ridging groove-pressing machine, and belongs to the technical field of agricultural technology. The method comprises the steps of performing land preparation and fertilizer application, performing ridging and groove pressing, arranging grooves and sowing seeds, performing earthing and covering the seeds, and performing field management. The specialized ridging groove-pressing machine comprises a frame which is supported on land wheels, a rotary-tillage ridging assembly which is located in front of the frame, and a groove-pressing roller which is located at the rear part of the frame; and the groove pressing roller is aslant supported on the frame in a direction corresponding to a ridge shape formed by rotary-tillage ridging, and is equipped with arc protuberances which are corresponding to planting grooves with arc bottoms, are uniformly distributed along a circumferential direction and are extended along an axial direction. The method provided by the invention is adopted to change the growing direction of yam, and is beneficial for realizing whole-process mechanization of ploughing, planting, managing and harvesting of the yam; the machine has two functions of ridging and pressing grooves, not only is beneficial for reducing the labor intensity, but also is beneficial for guaranteeing the planting quality.