1. The manifestations of language disorders in children with autism: 1. weak eye contact and concentration; 2. tongue-learning speech; 3. multiple articulation problems; 4. weak language comprehension; 5. language expression disorders; 6. confusion of pronouns you/I/him. Principles of language training for children with autism: 1. Understand the existing language ability of the child with autism through detailed assessment and develop a targeted training plan; 2. Understanding and communication skills; 6. Combine visual, dynamic and auditory, and make full use of his visual advantages to train. Language training methods: 1. Pre-linguistic training: visual search and tracking and gaze to gaze training. 2, auditory training. 3, comprehension training: pair training, action imitation and listening to instructions training. (4) Pronunciation training: (1) If the child has motor dysfunction of the sound-forming organs, training should be conducted. (2) It can be combined with oral and facial acupuncture point stimulation, the points pressed: cheek car, shimonoseki, yingxiang, diakang, renzhong, lianquan and shingjiao. (3) Breathing training. 5.Monotone and word training. (6) Correction of learned tongue speech. 7.Training of comprehension, logical thinking, and narrative skills.