a method for jointing a rubbery - core - inserted braid is provided . in the method , a mold made of a pair of templates is prepared , wherein the templates may be closed in such a manner that trenches can constitute a through hole into which the braid is fittable . the method includes a step of fitting an end of the braid into the trench in one of the templates , while fitting the other end of the braid into the trench , thereby approaching both the ends of the braids each other , a step of interposing a thermoplastic resin between both the ends , and a step of heating and melting the thermoplastic resin in a state where the mold is closed , causing the melted resin to penetrate into the ends of the braids , and solidifying the melted resin , thereby jointing the ends of the braids to each other .