An anionic exchange resin catalyst for the hydrating reaction of epoxy ethane is prepared through suspension polymerization between the haloalkyl substituted styrene and divinyl benzene to obtain the copolymer beads or gel, quaternary ammonium reaction on pyridine, quinoline, iso quinoline, or substituted derivative in organic solvent to obtain anionic exchange resin, and using the radial of oxygen contained inorganic acid or carboxylic acid to exchange with the halogen ions in resin. Its advantages are high thermal stability and high catalytic activity.