1. A cloud robot system, comprising: a cloud computing platform and multiple robots; wherein the cloud computing platform is configured for receiving perform information sent by each of said multiple robots in said cloud robot system; the perform information comprises data, status and requests of each of said multiple robots; the cloud computing platform is configured for processing the data and status of each of said multiple robots, sending process results back to each of said multiple robots, and sending control instructions to a corresponding robot according to the requests; each of said multiple robots is configured for sending the perform information to the cloud computing platform, receiving process results from the cloud computing platform, and performing according to the control instructions sent from the cloud computing platform; wherein each of said multiple robots comprises a first communication module, the cloud computing platform comprises a second communication module; each of said multiple robots and the cloud computing platform are connected by wired or wireless connections to communicate with each other through the first communication module and the second communication module; said multiple robots under said cloud computing platform communicate with each other through said cloud computing platform, the cloud computing comprising multiple cloud brain modules, each of said multiple cloud brain modules corresponding to a respective robot of said multiple robots; and each of said multiple robots further comprises: a local brain module, configured for processing self-generated requests; sensors, configured for collecting data; and a monitor module, configured for monitoring behavior and status of each corresponding robot according to process results sent back from the cloud computing platform and sending the data collected by the sensors, status of each corresponding robot and service requests to the cloud computing platform in time; wherein each cloud brain module stores knowledge base, inference engine, neural network, data and experience of each corresponding robot; and each cloud brain module is configured further for processing the data, status and request sent from each corresponding robot, and sending the process results back to each corresponding robot, and wherein the cloud computing platform further includes a plurality of social modules, each of the social modules corresponding to each of the cloud brain modules, each of the social modules bein configured for intercommunication between cloud brain modules of different robots, analyzing and mining of robot group information to realize cooperating and linking, and through the social modules the robots join in or quit at least one robot group.