To realize a flexible electrically conductive coating film that is inexpensive and has high durability, and to provide a wearable device using such coating film as wiring. An electrically conductive paste is obtained by blending and kneading at least: an electrically conductive filler which comprises metal-coated particles having a non-surface-treated metal layer on the surface of electrically non-conductive core particles； a binder resin comprising an elastomer； and an organic solvent. By further adding an additive having a surface of free energy of 30 mJ/m2 or less, repetition durability is improved. An electrically conductive coating film obtained from the electrically conductive paste exhibits high durability to repeated expansion and contraction, is suitable for use in wearable applications requiring flexibility, and is inexpensive.本發明之課題係提供以低成本實現高耐久性之伸縮性導電皮膜，以及提供於配線使用該伸縮性導電皮膜而成的穿戴式設備。該課題之解決方法係至少摻合混練下列成分來獲得導電性糊劑：由在非導電性之核心粒子的表面具有未施以表面處理之金屬層之金屬被覆粒子構成的導電填料、由彈性體構成的黏結劑樹脂、有機溶劑。此外，藉由添加表面自由能為30mJ/m2以下之添加劑來改善重複耐久性。得自於該導電糊劑之導電性皮膜對於重複伸縮之耐久性高，適合於需要伸縮性之穿戴式用途，且為低成本。
