The invention discloses a meat mincing machine capable of automatically overturning meat. When a conventional meat grinder is used for grinding the meat, the skin texture of the meat can be destroyed, and a conventional meat mincing machine imitates manual meat mincing, so that the fiber of the meat can be reserved, and the texture of the meat is improved. The conventional meat mincing machine is difficult to realize fully-automatic overturning of the meat. The meat mincing machine disclosed by the invention comprises a knife rest mechanism, a meat overturning mechanism and a cutting board mechanism, wherein the knife rest mechanism comprises a meat mincing base, a bearing seat, a first motor, a coupling, a bearing, a crankshaft, a connecting rod, rockers and blades; the cutting board mechanism comprises a cutting board frame, a cutting board base, a cutting board and a second motor; and the meat overturning mechanism comprises a motor seat, a first rotating arm, a connecting column, a vertical blocking board, an oblique blocking board, an electromagnet mounting frame, a first connecting block, a second rotating arm, a motor housing, a second connecting block, a fixing frame, a third motor, a fourth motor, a cylindrical pin and a supporting column. The meat mincing machine disclosed by the invention imitates the movements during manually mincing meat, so that the texture of the minced meat is guaranteed; and the meat mincing machine can overturn the meat in the process of meat mincing, so that the meat is more uniformly minced.