Thin type heat dissipating sheet and thermoelectricity device thereof

The utility model discloses a thin type heat dissipating sheet and a thermoelectricity device thereof. The thin type heat dissipating sheet comprises a first substrate, a heat diffusion radiation layer and a second substrate, wherein the heat diffusion radiation layer is arranged on the first substrate and comprises a carbon composite material, the second substrate is arranged on the heat diffusion radiation layer, and at least one of the first substrate and the second substrate is provided with a plurality of heat dissipating holes. The thermoelectricity device comprises the thin type heat dissipating sheet, a heat source body, a thermoelectric element and a power supply element, wherein the heat source body is connected to the second substrate of the thin type heat dissipating sheet, the thermoelectric element is connected to the first substrate of the thin type heat dissipating sheet, and the power supply element is electrically connected to the thermoelectric element. Electronic devices such as mobile apparatuses, flat computers or notebook computers or the like that adopt the thin type heat dissipating sheet of the utility model can be reduced in overall thickness and improved in heat dissipating efficiency.