Abstract: A positive electrode material that contains sulfur of high capacitance density as an active material without containing any large amount of conduction aid, namely, a positive electrode material for a battery of high energy density. There is provided a battery positive electrode material comprising a composite of conductive substance and sulfur and/or a sulfur compound having S—S bond, wherein there is disposed a composite microparticle layer having microparticles of conductive material cut into particles of sulfur and/or a sulfur compound having S—S bond. Further, there is provided a process for producing a battery positive electrode material, comprising conducting mechanofusion between particles of sulfur and/or above-mentioned sulfur compound as a raw material and microparticles of conductive material so as to obtain a composite material having a composite microparticle layer wherein the above microparticles are cut into the above particles.