The invention relates to a garlic harvester with a residual film recovery function. The garlic harvester comprises a power device, a cutting device and a digging device, and the cutting device, the digging device and a residual film collection device are mounted on the power device. The residual film collection device comprises a supporting frame, a twining frame and a first driving device, the twining frame is coupled to the supporting frame which is positioned in front of the cutting device, and the first driving device drives the twining frame to rotate and is mounted on the supporting frame. The garlic harvester has advantages that functions of cutting, throwing, digging, soil shaking for transporting, residual film recovery and the like can be completed efficiently; garlic plant feeding, cutting and throwing tasks can be completed effectively, and high efficiency and low cutting missing rate are realized; the residual film recovery device is capable of recovering residual films todecrease the residual amount of mulch films in fields, and accordingly the impurity rate of harvested garlic is decreased, and quality of the harvested garlic is improved.