NOVELTY - The method for preparing a membrane electrode assembly, comprises treating a surface of the assembly of a fuel cell with a pre-treatment to increase adhesive properties, applying an adhesive to the treated surface, bonding an electrically conductive member to the treated surface with the adhesive, applying a primer and a coupling agent to the assembly surface after the treating step and before applying the adhesive, and positioning a preformed adhesive insert relative to the assembly of a fuel cell having a membrane electrolyte and an electrode.    USE - Useful for preparing a membrane electrode assembly.    ADVANTAGE - The method increases the performance of the membrane electrode assembly of the fuel cell and has long life span of the fuel cell.    DETAILED DESCRIPTION - The method for preparing a membrane electrode assembly, comprises treating a surface of the assembly of a fuel cell with a pre-treatment to increase adhesive properties, applying an adhesive to the treated surface, bonding an electrically conductive member to the treated surface with the adhesive, applying a primer and a coupling agent to the assembly surface after the treating step and before applying the adhesive, positioning a preformed adhesive insert relative to the assembly of a fuel cell having a membrane electrolyte and an electrode, and bonding an electrically conductive member to the assembly with the adhesive. The treating step comprises applying a radio-frequency glow charge, a sodium napthalate, a corona discharge, and a flame treatment to the assembly surface. The positioning step comprises locating the adhesive insert on a surface of the membrane electrolyte of the assembly adjacent to an edge of the electrode. The bonding step comprises heating and compression molding of the adhesive insert to seal an outer periphery of the assembly, permeating the electrically conductive member by the adhesive insert, and abutting the edge of the electrode by the adhesive.    DESCRIPTION OF DRAWING(S) - The diagram shows the membrane electrode assembly:    Ionically conductive member; (4)    Anode electrode; (6)    Cathode electrode; (8)    Electrically conductive members; (10, 12)    Frame-shaped gaskets. (14)