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The research was conducted to assess the ability to treat livestock wastewater after biogas treatment from one small livestockhouse of Binh Duong province by biofilter technology combined with constructed wetlandsThe treatment capacity of pilot model was studied with four different parameters including: TSS, BOD, ammonium, turbidity. The best treatment capacity was observed are: TSS 36,96%, BOD 34,69%, ammonium 36,07% and turbidity 34,77%. The best results obtained through research at the wetland are: at the wetland about BOD 45%, Ammonium 70%, TSS 80%, and turbidity 50% and at the wetland C about BOD is 40 %, ammonium 50%, TSS 70%, and turbidity 48%. Although the wastewater is treated by biofilter and continues to be treated by wetland, the treated wastewater still has values higher than the allowable values specified in QCVN 62-MT: 2016/BTNMT. Experimental results show that the biofilter technology combined with constructed wetlands, reducing the concentration of BOD, TSS, ammonium... effectively.