A non-removable bridge dental prosthesis includes an artificial tooth to be inserted into a region from which a tooth has been lost, a bridge tightly fixed to the rear surfaces of the teeth on either side of the region from which the tooth was lost, and a coupling member for coupling the artificial tooth to the bridge. The coupling member is integrally installed on the rear surface of the artificial tooth, and has a catching piece and a coupling projection. A coupling hole is formed in the bridge in a shape corresponding to the coupling projection and is located at a position where the coupling projection of the coupling member is formed. The coupling projection is inserted in the coupling hole of the bridge and simultaneously, the catching piece is caught on the top end of the bridge.