Mirror neurons are motor-sensory neurons that mainly observe other people’s behaviors and execute actions, and have the functions of promoting learning, communication, and understanding. 1. Promote learning: the brain will activate the neural circuits that cause the execution of actions through the observation of other people’s behaviors or the perception of actions, which will lead to the imitation of other people’s social behaviors to promote the learning of related actions. 2. Promote communication: Through the dual activation mechanism of action perception and action execution, it can promote the human body’s behavior and the behavior of others to communicate with each other, and cause more awareness of actions and ideas. 3. Promote understanding: Mirror neurons in the brain enable humans to grasp the behavioral intentions of others, which can rapidly promote understanding and improve personal cognition.