To provide a heat-sensitive recording material which is excellent in image preservability, especially, image light fastness in the heat-sensitive recording material in which a heat-sensitive recording layer containing a diazonium salt compound and coupler compound is provided.

This heat-sensitive recording material is provided with the heat sensitive recording layer which contains at least the diazonium salt compound and the coupler compound causing a coupling reaction with the diazonium salt compound on a supporting body. In this material, the heat-sensitive layer contains compounds which are represented by a formula 1, wherein R1, R2 and R3 are each independently an alkyl group, an aryl group, and an acyl group which may have substituents, and the R1 and R2, R2 and R3, and R3 and R1 each may form a ring. Furthermore, in the formula 1, it is desirable that at least one of the R1, R2 and R3 is the aryl group.