Most children with Autism Spectrum Disorder (ASD) have facial expression recognition difficulties. They are unable to communicate emotionally with others, which impacts the social interaction skills of children with ASD and even leads to other social interaction problems. In this paper, an emotional intervention system based on the First Order Motion Model technology is designed for children with ASD to improve their emotional expression and then promote their social communication skills through the intervention. The system provides a series of intervention sessions for children with ASD, and users simply upload a photo of the child with ASD and the person close to them. A video of facial expressions generated through First Order Motion Model technology is loaded into the system along with an animated cartoon video. It is hoped that the system will help children with ASD overcome abnormalities in the mirror neuron system and then improve the generalisation skills of children with ASD.