Abstract: Embodiments of the present disclosure provide a thermoelectric laser power probe, including a heat dissipation housing and a laser power probing unit fixed inside the heat dissipation housing. The heat dissipation housing is provided with a light inlet. The laser power probing unit includes a substrate. The substrate includes a top surface and at least two outer side surfaces. The top surface is provided with an absorbent material layer. The absorbent material layer corresponds to the light inlet. The at least two outer side surfaces are symmetrically arranged about a center line of a cross section of the top surface, each of the outer side surfaces is perpendicular to the top surface or a tangent plane of the top surface, and each of the outer side surfaces is sequentially provided with an insulating layer and a thin-film thermopile.