The utility model relates to a harvester for garlic, which comprises a machine frame, a power input shaft, a left depth limiting wheel, a right depth limiting wheel, a soil digging shovel, a left vibrating screen, a right vibrating screen, a left screen shaft, a right screen shaft and a transmission mechanism, wherein the soil digging shovel is fixed on the bottom of the front end of the machine frame, the left depth limiting wheel and the right depth limiting wheel are arranged on the lower ends of a bracket of the left depth limiting wheel and a bracket of the right depth limiting wheel, the upper ends of the bracket of the left depth limiting wheel and the bracket of the right depth limiting wheel are arranged on both sides of the rear end of the machine frame, and the transmission mechanism comprises a crank fly wheel, a left connecting rod, a right connecting rod, a left lower swing arm, a right lower swing arm, a left upper swing arm, a right upper swing arm, a left pull rod and a right pull rod. The crank fly wheel is fixed on the rear end of the power input shaft. One end of the left connecting rod and the right connecting rod is respectively hinged with the crank fly wheel, and the other end is respectively hinged with the upper parts of the left upper swing arm and the right upper swing arm correspondingly. The lower parts of the left upper swing arm and the right upper swing arm are respectively hinged with the upper ends of the left pull rod and the right pull rod correspondingly. The lower ends of the left pull rod and the right pull rod are respectively hinged with one end of the left lower swing arm and the right lower swing arm correspondingly, and the other end of the left lower swing arm and the right lower swing arm are respectively and fixedly connected with the left screen shaft and the right screen shaft. The utility model has the advantages of energy saving, environmental protection, safety, etc.