A metal-cutting type energy absorption anti-burst hydraulic pillar is characterized in that an end of a piston rod is provided with a cutting type energy absorption anti-burst mechanism portion that comprises a cutting member and inner/outer cutting energy-absorbing components, the cutting member is of cylindrical tubular structure, and the inner/outer cutting energy-absorbing components comprise inner/outer cutting blades, inner/outer cutting blade support barrels, inner/outer supports, inner/outer guide discs and inner/outer connection bolt components; the inner/outer cutting blades are of circular structure, the inner/outer walls of the lower end of the cutting member are provided with inner/outer circular blade-lifting initial-support terraces, and the cutting member is clamped and supported to the inner/outer cutting blades through the terraces; the top ends of the inner/outer blade support barrels are provided with inner/outer blade mounting grooves, and the inner/outer cutting blades are fixed in the inner/outer blade mounting grooves; the inner/outer supports are arranged at the top ends of the inner/outer blade support barrels, the inner/outer guide discs are positioned at the tops of the inner/outer supports, and the inner/outer guide discs are in linear sliding contact fit with the inner/outer walls of the cutting member; the inner/outer guide discs, the inner/outer supports and the inner/outer blade support barrels are fixedly connected through the inner/outer connection bolt components.