This regenerative high-temperature cracking system is specially matched for waste gas treatment of rendering production lines. Equipped with heat storage bricks for waste heat recovery, it features fast temperature rise, low energy consumption, high temperature resistance and corrosion resistance. It completely decomposes malodorous organic waste gas through high-temperature pyrolysis, realizing zero odor, zero tail gas and zero emission. Adopting integrated sealed carbon steel structure and fully automatic temperature control, it meets environmental protection standards with no secondary pollution.