The invention discloses a server cluster packet scheduling method based on negative feedback. The method comprises the steps of: (1), according to the historical operation states of servers in the kth period, calculating the optimal server operation number in the kth period; and (2), according to the optimal server operation number and the operation states of the servers in the kth period, obtaining the number of servers, which can be opened in the k+1th period, in the negative feedback mode. By means of the server cluster packet scheduling method disclosed by the invention, the historical operation conditions are counted; the number of the servers, which can be opened, is automatically adjusted in the negative feedback mode; and thus, the resource utilization rate and the energy efficiency of a server cluster can be improved.