The invention relates to a closed super conductivity ring multilayer membrane, its characteristic lies in: the cross section of super conductivity multilayer membrane present the closed elliptical ring or the rectangular link; The ellipse endocyclic axis is 10-100000nm, the ratio of minor axis and the major axis is 1: 1-5, the ellipse exocyclic minor axis is 20-200000nm; the rectangular endocyclic width is 10-100000nm, the rectangular exocyclic width is 20-200000nm, the ratio of rectangular endocyclic width and the length ratio is 1: 1-5. According to the different classification of potential barrier layer, the closed super conductivity ring multilayer membrane includes the single potential barrier and the double potential barrier; it may prepare through the micro processing method. The invention closed super conductivity ring multilayer membrane under the maintenance super conductivity multilayer membrane original characteristic and performance situation, also has smaller junction capacitance and power loss and so on merit, can satisfy the large-scale product request, can widely apply to each device which is taking the superconductivity ring multilayer membrane as core.