To provide an elastic conductor that can be used to form a film having good repeated stretchability, a clothing-type electronic device that has wires using said conductor formed therein, and a method for producing same. Conductive particles, preferably silver particles, a predetermined quantity of a specific barium sulfate, and a flexible resin component are mixed together to obtain an elastic conductor composition. A sheet made from the elastic conductor composition thus obtained has a low initial conductivity, and a high conductivity retention rate when repeatedly stretched. By cutting said elastic conductor composition into a predetermined shape and affixing said composition to fabric or the like that constitutes clothing, it is possible to achieve a clothing-type device having electrical wiring with high stretchability.本發明提供一種能形成重複伸縮特性良好之皮膜的伸縮性導體、形成有使用該伸縮性導體之配線的衣服型電子設備及其製造方法。 將導電粒子、較佳為銀粒子、指定量的特定硫酸鋇、及具柔軟性之樹脂成分予以混合，獲得伸縮性導體組成物。由獲得之伸縮性導體組成物構成的片材，其初始導電性低，且重複拉伸時的導電性保持率高。藉由將該伸縮性導體組成物切成指定形狀，並貼附至構成衣服之布料等布帛，可實現包括具有高度伸縮性之電氣配線的衣服型裝置。
