The invention relates to a super capacitance battery diaphragm, wherein permanent hydrophilic group hydrophilic groups and crylic acid series monomers simultaneously exist on the surface of fiber forming the diaphragm, the fiber forming the diaphragm is composed of polyolefin skin core type type fiber or polypropylene fiber or both the polyolefin skin core type core fiber and the polypropylene fiber in matching mode, is formed through a wet papermaking method or a dry carding process, and is manufactured into a laminated diaphragm base body. The super capacitance battery diaphragm has the advantages of excellent water retainability, high strength, strong ion migration ability, high charge retention ratio, low internal resistance and the like, meets large current charge and discharge requirements of super capacitance batteries, and has excellent low temperature performance.