NOVELTY - A hydrocarbon type anion exchange membrane (6) has cross-linked hydrocarbon type anion exchange resin having quaternary ammonium salt-containing unit (1) as main polymer unit, filled in the cavity of hydrocarbon type porous film.    USE - Hydrocarbon type anion exchange membrane used for manufacturing diaphragm for fuel cells (claimed) especially direct liquid type fuel cells. Can also be used for salt manufacture, food purification and metal recovery.    ADVANTAGE - The hydrocarbon type anion exchange membrane has high ion exchange capacity and high conductivity. The fuel cell using the diaphragm has high output characteristics and is obtained economically.    DETAILED DESCRIPTION - A hydrocarbon type anion exchange membrane has cross-linked hydrocarbon type anion exchange resin having quaternary ammonium salt-containing unit of formula: -(CH2-CH(N+(-R1)(-R2)(-R3))X-)- (1), as anion exchange group, filled in the cavity of hydrocarbon type porous film.    R1-R3=1-3C alkyl;and    X=anion, preferably hydroxide ion, carbonate ion or bicarbonate ion.    INDEPENDENT CLAIMS are included for the following:    (1) manufacture of the hydrocarbon type anion exchange membrane, which involves contacting polymerizable composition containing vinyl carboxylic amide of formula: CH2-CH-N(-R4)-C(=O)-R5 (2), cross-linking polymerizable monomer and polymerization initiator with hydrocarbon type porous film, filling the composition in the cavity of the film, carrying out polymerization hardening, hydrolyzing the carboxylic acid amide group and converting to amino group, quaternizing the amino group with alkylating agent which can introduce 1-3C alkyl group and converting into quaternary ammonium salt group; and    (2) manufacture of diaphragm for fuel cells, which involves using the hydrocarbon type anion exchange membrane.    R4,R5=H, 1-3C alkyl or hydrocarbyl.    DESCRIPTION OF DRAWING(S) - The drawing shows the basic structure of the polymer electrolyte fuel cell.    Battery partition (1a,1b)    Fuel flow hole (2)    Oxidizing agent gas distribution hole (3)    Fuel diffusion electrode (4)    Hydrocarbon type anion exchange membrane (6)