Robot system and task execution method of robot system

The invention discloses a robot system and a task execution method of the robot system. The robot system comprises a robot and a server. The robot and the server are communicated through a wireless network. When a user has a conversation with the robot, the words of the user are sent to the server by the robot, the server carries out speech recognition and obtains the content of a task that the user wants the robot to execute, and the robot executes corresponding task according to the instruction of the user. In the invention, the user can control switches of electric appliances or regulators and even execute certain specific tasks without using electronic equipment to generate control commands.