A rack fan speed regulation method based on a fan table provided in a node BMC is provided, which includes: providing a fan table reflecting a rack fan speed regulation policy in a BMC of each node server; acquiring, by the node BMC, a parameter reflecting a heat dissipation condition of a node motherboard; and acquiring, by the node BMC based on the speed regulation policy, a fan rotation speed corresponding to the parameter rapidly. With the rack fan speed regulation method, the node BMC can rapidly obtain parameters reflecting a heat dissipation condition of a node motherboard, and rapidly obtain a corresponding fan rotation speed based on the speed regulation policy. In this case, heat dissipation of the node can be controlled effectively in a timely manner, thereby ensuring heat dissipation of the rack.