The invention discloses a safe high-performance lithium-ion battery membrane, which comprises a polyolefin microporous membrane and nano metal hydroxide coatings which are compounded on the upper surface and/or the lower surface of the polyolefin microporous membrane, or comprises an ultrahigh molecular weight polyethylene (UHMWPE)/high-density polyethylene (HDPE)/nano metal hydroxide microporous membrane, or comprises the UHMWPE/HDPE/nano metal hydroxide microporous membrane and nano metal hydroxide coatings which are compounded on the upper surface and/or the lower surface of the UHMWPE/HDPE/nano metal hydroxide microporous membrane. The three safe high-performance lithium-ion battery membranes disclosed by the invention have double safety guarantees of high-temperature self-closing holes and flame retardation; and the safety problem that an existing UHMWPE lithium-ion battery membrane does not have the self-closing holes or the flame retardant property is solved.