NOVELTY - The method involves equipping one side of an electrolytic membrane with first reinforcement film and other side with second reinforcement film. The reinforcement film is pressurized at electrolytic membrane while applying heat during thermocompression-bonding process. The count that second reinforcement film bonded to electrolytic membrane is less than first reinforcement film bonded to the electrolytic membrane by thermo-compression. The second reinforcement film is arranged to the other side of electrolytic membrane to which reinforcement film is bonded by thermo-compression.    USE - Method of manufacturing reinforcement type electrolytic membrane.    ADVANTAGE - The strength of a reinforcement type electrolytic membrane is improved. The ability to make high the elasticity modulus in the surface of a reinforcement type electrolytic membrane is facilitated. The simplification of a manufacturing process at reduced cost is achieved. The electric power generation performance of the membrane electrode assembly is improved.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:    (1) the method of manufacturing membrane electrode assembly; and    (2) a membrane electrode assembly.    DESCRIPTION OF DRAWING(S) - The drawing shows a flowchart illustrating the method of manufacturing reinforcement type electrolytic membrane.    Step for bonding electrolytic membrane and the back seat together (S100)    Step for bonding first reinforcement film together on the electrolytic membrane bonded together by the back seat (S102)    Step for bonding electrolytic membrane and first -reinforcement film by thermo-compression by applying and pressurizing a heat from both surfaces of the back seat (S106)    Step for bonding second reinforcement film together at the side in which the first back seat of the melt impregnation film peeled on the electrolytic membrane (S110)    Step for bonding reinforcement film and the electrolytic membrane by thermo-compression from both surfaces of back seat (S114)