The invention discloses a metamorphic mechanism for turnover and shaking-off of a waste lead-acid storage battery and a recycling method. The metamorphic mechanism comprises a portal machine frame, aturnover machine frame, left-side and right-side V-shaped guide rods, U-shaped pulling rods, two drive oil cylinders and a turnover frame, wherein the turnover machine frame is positioned at the innerbottom of the portal machine frame; the left-side and right-side V-shaped guide rods are hinged to and fixed on door posts on the two sides; the U-shaped pulling rods are connected with the V-shapedguide rods; the two drive oil cylinders are used for driving the free ends of piston rods of the U-shaped pulling rods to be arranged downwards; the turnover frame is rotationally fixed on and hingedto the turnover machine frame and intermittently forms line contact higher pair motion with the left-side and right-side V-shaped guide rods; and the turnover frame is used for clamping the cut wastelead-acid storage battery and overturns under the actions of the V-shaped guide rods and self gravity to be in collision contact with the turnover machine frame. The metamorphic mechanism for turnoverand shaking-off is used for completing battery turnover by 180 degrees instead of labor force and realizes the separation of a trough body from a plate pack; the problems that the manual turnover andseparation efficiency is low, and the human health and the environment are endangered are effectively solved; the metamorphic mechanism is low in manufacturing cost, low in requirements for maintenance and service and higher in reliability and degree of automation.