The invention discloses an axe grinding device and belongs to the field of hardware tool machining. The axe grinding device comprises a rack baffle, a guide rail, a support bottom plate, a motor, a rack, a bottom plate, an air cylinder installing plate, an air cylinder, rack stop iron, a grinding wheel, a grinding wheel shaft, a grinding wheel shaft support plate, a hydraulic cylinder, a top plateassembly body and a sliding block. The whole axe grinding device is high in automation degree and high in efficiency, three-directional comprehensive movable grinding is achieved, thus grinding of anaxe is more comprehensive, grinding precision is improved, in the whole axe grinding process, a worker can keep away from the machine completely, health and safety of the worker are protected, the worker does not need to wear heavy equipment, and more convenience is provided for work. The air cylinder drives movement of the top plate, the top plate drives meshing movement of a gear and the rack,the gear drives rotary movement of the axe, the rack drives transverse movement of the axe and is matched with the hydraulic cylinder to drive up and down movement of the grinding wheel, three-directional synergic movement is achieved, complete grinding of two faces of the axe is completely, grinding precision is improved, and economic loss brought by inferior products is lowered.