The present invention addresses the problems of reducing the used amount of a hot-melt adhesive for joining, achieving a decrease in product costs by dispensing with an elastic member (thread-like rubber), and enhancing function as tunnel spaces (pleats (folds)) when joining two sheets (a non-stretchable sheet of a first substrate and a stretchable sheet of a second substrate). A method for producing a composite stretchable member comprises: a transfer step (I) for applying a thin film hot-melt adhesive (HM) to the rear surface of the non-stretchable sheet of the first substrate (A) using a pattern distribution from the surfaces of protrusions (12) of a pattern roll (1) and a bonding step (II) for cladding the first substrate and the stretchable sheet of the second substrate (B), said first substrate having had the thin film hot-melt adhesive applied to the rear surface thereof by the above-mentioned process, and said second substrate being fed at a running speed that is 1/2 or less than that of the first substrate, wherein the distribution of adhesion positions and the cross-sectional shape of the tunnel spaces are set by the pattern distribution from the surfaces of the protrusions of the pattern roll by configuring a stretchable nonwoven fabric sheet to the natural length thereof.La présente invention aborde les problèmes de réduction de la quantité utilisée dun adhésif thermofusible pour lassemblage, dobtention une diminution des coûts de produit par distribution avec un élément élastique (caoutchouc de type fil), et damélioration de la fonction en tant quespaces de tunnel (plis (replis)) lors de lassemblage de deux feuilles (une feuille non étirable dun premier substrat et une feuille étirable dun deuxième substrat). Un procédé de production dun élément étirable composite comprend : une étape de transfert (I) pour appliquer un adhésif thermofusible à couche mince (HM) sur la surface arrière de la feuille non étirable du premier substrat (A) au moyen dune distri
