A training system for treating infantile autism comprises a scene generating module. The training system for treating infantile autism is characterized in that a scene switching trigger circuit and a scene switching control circuit are further included; the scene switching trigger circuit is used for generating a trigger signal for switching scenes, and the output end of the scene switching trigger circuit is connected to the scene switching control circuit; the output end of the scene switching control circuit is connected to the scene generating module, and the scene switching control circuit is used for controlling the scene generating module to switch the scene pictures to output scene pictures with different kinds of previous and later content. The training system has the advantages that the brain can be induced to pay attention to a visual signal; the attention orientation of the brain can be constantly switched; repeated attention induction and attention switching are carried out on a patient; the transmission effect of the nerve pathway is interfered and influenced through the plasticity of the cranial nerve; the capacity of paying attention to outside information and switching the attention of the patient is enhanced; the training system can be used for treating the infantile autism.