A heat dissipation structure is provided and includes a heat dissipation body and an adjustment channel. A carrying area and an active area adjacent to the carrying area are defined on a surface of the heat dissipation body, the carrying area is used for applying a first heat dissipation material thereonto, and the adjustment channel is formed in the active area, where one end of the adjustment channel communicates with the outside of the heat dissipation structure, and the other end communicates with the carrying area. Therefore, when the heat dissipation body is coupled to the electronic component by the first heat dissipation material, the adjustment channel can adjust a volume of the first heat dissipation material.