An independent phase-change heat-transfer-type heat tube and a manufacturing method thereof, wherein the heat tube comprises a housing of which an outer surface is provided with a coating, the housing is provided with an evaporating end and a condensing end opposite to the evaporating end, an inner groove is provided between the evaporating end and the condensing end, a side groove, being separated from the inner groove, is provided in the evaporating end and the condensing end respectively, the inner grooves are separated from each other, the side groove and the inner groove form a plurality of independent cavities which are filled with a working medium.