Abstract: With the development of aerobic biological processes，various aerobic bioreactors which are highly efficient and able to treat refractory，even poisonous wastewater are available. Three kinds of aerobic bioreactors (moving bed biofilm reactor，pressurized aeration bioreactor，membrane bioreactor) used in refractory organic wastewater treatment are reviewed. Their applications，advantages and disadvantages are discussed. The progresses of these kinds of bioreactors are also presented.