A heat dissipation structure capable of improving heat dissipation efficiency and regulating temperature distribution of a surface of a housing is provided. A heat dissipation structure 300 is provided in a housing 200 that accommodates a heat generating source 102 therein, the heat dissipation structure 300 including: top surface parts 213 and 223 opposed to each other, in which the top surface part 213 includes a plurality of concave-shaped parts 213B-F that are aligned, the top surface part 223 includes a plurality of concave-shaped parts 223B-F that are aligned, the concave-shaped parts 213B-F of the top surface part 213 are opposed to the concave-shaped parts 223B-F of the top surface part 223, outlets 213A are formed in the concave-shaped parts 213D, 213E, and 213F, and outlets 223A are formed in the concave-shaped parts 223C, 223D, 223E, and 223F.