Disclosed are an enclosure structure, a dynamic heat dissipation method for a heat source in an enclosure structure, and a dynamic heat dissipation system. The dynamic heat dissipation method comprises: acquiring a relative-low temperature zone of an enclosure structure; and driving a heat source to move to the relative-low temperature zone. In this solution, in an enclosure structure, a conventional heat source having a relative fixed position is manually and actively converted into a movable heat source, so as to adapt to a temperature field and search for a relative-low temperature zone in the enclosure structure. A characteristic of a temperature difference in the (temperature) field of a (enclosure) structure is used to adjust the position of a heat source and adjust a heat dissipation distribution in the enclosure structure, so as to create, for the heat source, an optimal direction (temperature gradient direction) for transfer of heat from inside the enclosure structure to the outside thereof, and an enclosure structure environment having a maximum rate of heat dissipation, achieving dynamic heat dissipation. As a result, the operating temperature of the movable heat source is reduced, the service life of the movable heat source is extended, and the reliability and safety of the system are improved.