1. A robot system, comprising: a primary robot and at least one secondary robot, wherein the primary robot and the secondary robot respectively comprise a control module, a storage module, a wireless communication module and an operation execution module, wherein the control module is connected to the storage module, the wireless communication module and the operation execution module, respectively, for controlling all parts to work coordinately; wherein the storage module is used for storing programs for simultaneous performance; wherein the wireless communication module is used for enabling a communication connection between the primary robot and the at least one secondary robot; wherein the control module is used for determining under a default strategy, after the primary robot and the at least one secondary robot establish a communication connection, which simultaneous performance the robot system is going to give; wherein the wireless communication module is also used for establishing a reference point of synchronous clock signal of the primary robot and the at least one secondary robot after the control module determines the simultaneous performance to be implemented; wherein the control module is also used for reading and executing programs corresponding to the performance according to the reference point of synchronous clock signal, and generating control signal for the operation execution module; and wherein the operation execution module is used for executing performance actions according to the control signal.