An all-solid-state battery having excellent load characteristics, and an electrode for an all-solid-state battery for forming the all-solid-state battery are provided. It relates to Goals 12, 3, 7, and 11 of Sustainable Development Goals (SDGs). The electrode for an all-solid-state battery includes a molded body of a mixture containing an active material-containing electrode material, a solid electrolyte, and a conductive assistant. The electrode material is in the form of a composite particle having a layer containing a solid electrolyte A1 or solid electrolyte A2 that contains certain elements on its surface. The mixture molded body includes a solid electrolyte B1 or solid electrolyte B2 that contains certain elements between the composite particles. The compositions of the solid electrolyte A1 and the solid electrolyte B1 satisfy a certain relationship, or the composition of the solid electrolyte A2 and the composition of the solid electrolyte B2 satisfy a certain relationship.