A dual heat transfer structure, comprising: at least a heat pipe and at least a vapor chamber; the heat pipe having a first end, an extension portion, and a second end, the first and second ends disposed at the two ends of the extension portion; the vapor chamber being concavely bent with its two ends being joined together and selectively compasses, encircles, encloses, or surrounds one of the first and second ends and extension portion. The dual heat transfer structure of the present invention is a complex structure that can both transfer heat with a large area and to the distal end of the structure.