The present invention provides a heat-sensitive recording material comprising a substrate and a heat-sensitive recording layer provided thereon, the layer comprising a color forming system that combines an electron-donating colorless dye and an electron-accepting compound, in which the electron-accepting compound is a compound represented by the formula R.sup.1-Ph-SO.sub.2R.sup.2 (wherein R.sup.1 represents a hydroxyl group or an alkyl group, R.sup.2 represents -Ph, --NH-Ph, -Ph-OR.sup.3 or --NH--CO--NH-Ph, R.sup.3 represents an alkyl group, and Ph represents a phenyl group), and at least the heat-sensitive recording layer is formed by curtain-coating a coating solution for the heat-sensitive recording layer.