Bidirectional hydraulic limit shock absorber

The utility model relates to a bidirectional hydraulic limit shock absorber, which is applied to automobile suspension frames and comprises a double-cylinder oil cylinder, a piston device and a bottom valve device. A rebound limit sleeve is arranged at the lower end of a guider on the double-cylinder oil cylinder, a rebound limit cone is arranged at the upper end of a piston body on the piston device, an oil filling hole is arranged on a circulation valve channel arranged on a piston rod, and the oil filling hole is communicated with a working cylinder. The bottom valve device comprises a bottom valve base, a bottom valve cover, a bottom valve body, a compression valve sheet, a valve cover and a compression limit damping shaft, wherein the bottom valve base and the bottom valve cover are arranged below the working cylinder, the bottom valve body sleeved on a bottom valve spring is arranged in the bottom valve cover, the compression valve sheet and the valve cover are arranged below the bottom valve body, and