Unit Cell for Fuel Cell

A unit cell for a fuel cell is provided. The unit cell includes an insert including a Membrane-Electrode Assembly having a first pair of electrode layers formed on a first surface of a polymer electrolyte membrane and a second pair of electrode layers formed on a second surface of the polymer electrolyte membrane, an elastomer frame bonded at a rim of the insert in an outer area of the insert, the elastomer frame having a reaction surface through-hole in which the insert is disposed formed therein and having a plurality of frame manifold through-holes, through which a reactant gas can flow or be discharged, formed at both sides of and spaced apart from the reaction surface through-hole, and a pair of separators, each separator disposed on a respective side of the insert and the elastomer frame.