The invention relates to a magnetic multiplayer film with geometric shape, comprising all layers of a magnetic multiplayer film unit deposited on a substrate, wherein the cross section of the magnetic multiplayer film unit is polygonal closing ring shaped, magnetic moments or magnetic fluxes of film layers with ferromagnetism in the magnetic multiplayer film unit become in a clockwise or counter clockwise closing state; the invention also comprises a metal core arranged on the geometric center of the polygonal closed ring shaped magnetic multiplayer film, wherein the cross section of the metal core is a corresponding polygon; the invention also relates to a magnetic storage made of the magnetic multiplayer film which comprises(or does not comprise) the metal core; in the invention, the closing shape magnetic multiplayer film is prepared based on the micro processing method; the closing with(or without) metal core polygonal closing ring shaped magnetic multiplayer film is widely applicable to devices which takes the magnetic multiplayer film such as magnetic random access memory, computer magnetic reading head, magneto-dependent sensor, magnetic logic device and self-rotation transistor, etc. as the core.