The present invention provides a polyvinyl chloride hollow filtration
membrane, which mainly comprises the following components: 30-95 wt. % of
polyvinyl chloride and 5-70 wt. % of vinyl chloride-vinyl acetate-maleic
anhydride terpolymer, wherein the polymerization degree of polyvinyl
chloride is from 700 to 2500; the content of vinyl acetate is 10-19 % and
the content of maleic anhydride is 18-40 % on a basis of total weight of
the terpolymer; and the absolute viscosity of the terpolymer is 1.2-1.9
mPas. A method for preparing such a polyvinyl chloride hollow filtration
membrane is also provided in the present invention.