The application provides an energy-saving method, device, equipment and medium of a
data center, which is used for accurately recommending parameter values of controllable parameters of each
refrigeration equipment of the
data center, so as to realize energy saving and consumption reduction of the
data center. The method comprises the following steps: for each controllable parameter of each
refrigeration equipment of the data center, each parameter value in the parameter value limit range of each controllable parameter is traversed respectively, each time the traversal is performed, based on a series
connection model composed of function prediction models of each
refrigeration equipment, in combination with the parameter values of each controllable parameter in this time of traversal, parameter values of function parameters of each refrigeration equipment are obtained; if the parameter values of each function parameter meet a
safety condition, through an
energy consumption prediction model of any refrigeration equipment, based on the parameter values of the corresponding function parameters, a predicted
energy consumption of the refrigeration equipment is obtained, and then a predicted
total energy consumption is obtained; based on the predicted
total energy consumptions obtained through multiple traversals, a predicted
total energy consumption meeting a preset condition is selected, and the corresponding parameter values of each controllable parameter are combined as recommended parameter values.