NOVELTY - An anion exchange resin comprises bivalent hydrophobic group comprising aromatic rings mutually bonded through bivalent saturated hydrocarbon group, bivalent bonding group comprising some aromatic ring comprising single aromatic ring or mutually bonded through carbon-carbon bond, and bivalent hydrophilic group comprising aromatic rings which combines with each other through an oxygen atom or a sulfur atom, and has anion exchange group. The hydrophobic unit and hydrophilic units are bonded through the ether bond.    USE - Anion exchange resin is used for electrolyte layer and binder for cell electrode catalyst layer used in fuel cell (all claimed). Uses include but are not limited to motor vehicle, boats and ships, aircraft and mobile telephone.    ADVANTAGE - The anion exchange resin has excellent alkali resistance. The furl cell obtained using anion exchange resin has excellent durability.    DETAILED DESCRIPTION - An anion exchange resin comprises bivalent hydrophobic group comprising aromatic rings mutually bonded through bivalent saturated hydrocarbon group, bivalent bonding group comprising some aromatic ring comprising single aromatic ring or mutually bonded through carbon-carbon bond, and bivalent hydrophilic group comprising aromatic rings which combines with each other through an oxygen atom or a sulfur atom, and has anion exchange group. The hydrophobic unit by which hydrophobic group and bonding group are repeated through ether bond, and The hydrophilic unit by which hydrophilic group and bonding group are repeated through an ether bond. The hydrophobic unit and hydrophilic units are bonded through the ether bond. An INDEPENDENT CLAIM is included for fuel cell (S), which consists of electrolyte layer (4), and fuel side electrode (2) opposingly arranged on both sides of the electrolyte layer, and to which fuel is supplied, and oxygen side electrode (3) to which oxygen is supplied. The fuel is hydrogen-containing liquid fuel.    DESCRIPTION OF DRAWING(S) - The drawing shows schematic view of fuel cell. (Drawing includes non-English language text)    Fuel side electrode (2)    Oxygen side electrode (3)    Electrolyte layer (4)    Fuel cell (S)