Six different micro-filtration membranes with pore size of 0.45 μm， including PES， Nylon， CA， PVDF， PTFE and PP were used to clarify bayberry juice. We determined the physicochemical indexes and antioxidant activity of the filtered bayberry juice. Results showed that all the micro-filtration membranes could effectively improve the transmittance of bayberry juice and reduce the protein content in the juice. Micro-filtration membranes of different materials had no significant effect on soluble solids， acidity and pH value of bayberry juice（P>0.05）. The effects on anthocyanins， total phenols and total flavonoids content and antioxidant activity were significantly different （P<0.05）. Nylon membrane was not suitable for clarifying bayberry juice because it has the largest adsorption on the active components and color of bayberry juice. Polypropylene membrane had the highest pure water flux and permeation flux of bayberry juice， which could achieve higher filtration efficiency compared with other five micro-filtration membranes.