Abstract: On basis of mastering principle of carbonization technology and equipment and actual carbonization experiment, overall structure and size of carbonization equipment were studied and designed, and problems of inability to accurately monitor temperature and waste of energy in working process of carbonization furnace in prior art were solved through theoretical support, CAD drawing, Solidworks modeling and practical tests．Equipment was mainly composed of carbonization chamber, heating device and combustible circulation device, and size and structure of each component were designed and tested, and prototype was trial-produced．Experimental design objectives was that, charcoal forming rate was 95%, heating time could be set independently, the maximum carbonization temperature of carbonization furnace was 500 °C, combustible gas circulation device was running well, and temperature in carbonization process could be monitored in real time．Test results showed that designed energy-saving carbonization furnace could meet design requirements．