The invention provides a multi-floater wave energy driven power generation device based on a modular truss platform, belongs to the field of wave energy driven power generation and ocean engineering equipment and solves the technical problems that the energy utilization efficiency of a unit-area sea area is low, the construction cost of a unit-capacity generator set is high, floaters are shieldedmutually, and the wave permeation property of the platform is poor, of an existing oscillating floater type wave energy driven power generation device. The multi-floater wave energy driven power generation device is characterized in that the truss platform is of a regular polygonal structure and provides a bearing platform for the overall power generation device; a plurality of floating blocks areinstalled on the side surface of the truss platform and are used for providing floating force for the overall power generation device; a plurality of floaters are uniformly distributed surrounding the truss platform in a planetary form and are connected with the truss platform by adopting connecting rods; hydraulic transmission devices are correspondingly connected with the connecting rods; a generator set is placed on an upper deck of the truss platform; all floaters share one generator set for generating power; and a mooring system is used for positioning the overall power generation device. The multi-floater wave energy driven power generation device provided by the invention is especially applicable to power supply of offshore equipment, islands and the like.