The invention relates to a multimedia cloud calculating simulation method. The method comprises the following steps: according to the structure of a multimedia cloud to be simulated, establishing a corresponding resource model; according to the network structure of the multimedia cloud to be simulated, establishing a corresponding network model; according to a scene to be simulated, establishing a user behavior model; according to the characteristics of a multimedia cloud task submitted by a user, establishing a corresponding task model for each multimedia cloud task in the established user behavior model; the user, according to the demand of output data, customizing a data acquisition method, setting a monitoring event, and outputting the data of concern when the event occurs; and starting simulation, and the event generated by the user behavior model promoting the simulation to operate until the simulation is finished. The simulation method provided by the invention is applied to the simulation of multimedia cloud calculating.