A heat-sensitive recording material having a heat-sensitive recording layer on a substrate. An outermost layer from the substrate contains microparticle-aggregation particles. The microparticle-aggregation particles are preferably formed by silica microparticles, and the outermost layer is preferably a protective layer. The microparticle-aggregation particles have hardness such that soiling of a thermographic printing head is low, and softness such that wear of the thermographic printing head is low.