The present invention discloses an application of 
berberis julianae schneid in purification of 
livestock and poultry breeding 
biogas slurry, and belongs to the field of 
wastewater treatment. According to the present invention, 
berberis julianae schneid is planted in an environment polluted by 
livestock and poultry breeding 
biogas slurry, and absorption effects of the 
berberis julianae schneid on NH4<+>-N, TN, TP, CODcr and other pollutants in the 
livestock and poultry breeding 
biogas slurry, and characteristics of tenacious 
vitality, direct planting, no requirement of special management and 
perennation of the berberis julianae schneid are completely utilized so as to permanently solve the 
pollution problem of the livestock and poultry breeding biogas slurry. The application of the present invention has the following advantages that: the investment is low, the operation cost is low, the effect is good, the operation is simple and easy to perform, and the winter purifying effect of the artificial 
wetland system is ensured; the harvested berberis julianae schneid can be used for treatments of damp-heat 
dysentery, 
diarrhea, 
jaundice, eczema, sores ulceration, aphthae, 
conjunctival congestion, pharyngalgia and other syndromes; the berberis julianae schneid is adopted to treat the 
wastewater treatment, such that the 
environmental protection and the economic construction are combined, the 
sustainable development thoughts concurrently comprising 
sewage treatment, ecological restoration and economic construction are reflected, and the far-reaching significance is provided.