In this paper, vermicelli production wastewater is treated by three different ways: aerobic recycling, pre-anaerobic recycling after aerobic recycling and combined aerobicanaerobic recycling using the submerged biofilter method. The results show that physicochemical parameters as COD, NH4+, NO2 of vermicell production wastewater after treatment meet the standard of QCVN 2011/BTNMT. It is also found that the way of pre-anaerobic recycling after aerobic recycling operation has high treated effect and decreases the treatment expense.