The invention discloses a six-connecting rod overturning online mechanism for waste lead-acid battery recovery. The six-connecting rod overturning online mechanism is characterized in that the six-connecting rod overturning online mechanism comprises a feeding roller conveyor, a four-column frame, overturning frame connecting rods and a hydraulic cylinder; the overturning frame connecting rods arearranged below the four-column frame and used for clamping a cut battery; a main body of each overturning frame connecting rod is an overturning frame cavity with a rectangular cavity, in an initialstate, the overturning frame cavities are in horizontal abutting joint with the feeding roller conveyor in order to convey the cut battery into the overturning frame cavities to be clamped; the overturning frame connecting rods are hinged and suspended below the four-column frame through a V-shaped frame connecting rod and a frame connecting rod, separately, the V-shaped frame connecting rod is hinged to the piston end of the hydraulic cylinder, and the cylinder end of the hydraulic cylinder is hinged to the four-column frame; and when a piston rod of the hydraulic cylinder moves, the V-shapedframe connecting rod and the frame connecting rod are arranged to drive the overturning frame connecting rods to rotate by 180 degrees to make the bottom surfaces of the overturning frame cavities face upwards, so that acid liquor in the cut waste lead-acid battery is convenient to pour out. According to the six-connecting rod overturning online mechanism for waste lead-acid battery recovery, theproblems that manual battery overturning and moving at present is low in recovery rate and harmful to human health and environment are solved.