The pyrolysis of bamboo waste has been investigated. The effects of carbonization temperature, heating rate and carbonization time on characters of biomass carbonization was investigated by the orthogonal design. The optimized operating condition of bamboo waste was achieved by the analysis of variance: the carbonization temperature is 400 ºC, the heating rate is 10 ºC /min, the carbonization time is 60min.The yield of bamboo waste under the optimized operating conditions is 31.8%, and ash is 3.9%. The thermogravimetric analysis of the bamboo waste was carried out in a thermogravimetric analyzer. The analysis of TG and DSC curves indicates that the pyrolysis of bamboo waste should be divided into four steps: the dryness is below120 ºC, from 120 to 240ºC is preheating section, and pyrolysis occurs at 230 to 370 ºC and after 370 ºC is carbonization process.