The utility model discloses a ridge-breaking, fertilizing, and film covering machine for ratoon cane. The transverse output terminal of a gear shaft in a gear case of the ridge-breaking, fertilizing, and film covering machine for ratoon cane is provided with a pinion; the gear case is connected with a cutter shaft through a gear group; the cutter shaft is provided with at least three sets of blade groups which are connected through a cutter pedestal; the posterior inferior portion of the frame is provided a stay tube for arranging a thin film reel; two ends of the stay tube are connected with a fixing rod through an adjusting rod; a funnel type fertilizer box with an auger type distributor is arranged over the frame; the auger shaft of the auger type distributor is arranged on the frame through a bearing; the auger shaft is provided with a distributor gear which is connected with the pinion through a chain; the inferior outlet of the auger type distributor is connected with a fertilizer conduit; and the outlet of the fertilizer conduit is positioned in front of the frame. The utility model can complete three procedures of ridge-breaking, fertilizing, and film covering for ratoon cane at the same time; degree of machinery automation is high; work efficiency is raised; labor intensity is reduced; manpower is saved; and popularization usage is worthy.