A heat-sensitive recording material comprising on one surface of a
substrate a heat-sensitive coloring layer comprising a leuco dye and a
color developer,wherein the heat-sensitive recording material comprises a
layer which comprises a copolymer of a (meth)acryloyloxyalkylammonium
salt and styrene; and the layer which comprises the copolymer of the
(meth)acryloyloxyalkylammonium salt and styrene is at least any one of a
back layer, an under layer and a protective layer.