Even though the importance of parents brings to children with autism is apparent, the influence of fathers on them is lacking. this paper aims to analyze the main problems of children with autism development in language and communication development and social relationship development, including difficulties in understanding, accepting, and using language skills and low positive relationships creating inferior quality interaction. According to previous research, the father could increase children's sense of security, and adjust the language used to satisfy the emotional availability (EA) level. In the language area, the father chooses to use a simplified speech register and uses challenging language modules or complex vocabulary with the children. The response pattern of the father is more likely the same as adults in society which bring the challenge to children. The overall language output from the interaction between father and children is significantly less than the interaction between mother and children but there is no significant difference between the mother in question using and information requesting. Fathers will provide more opportunities to children and keep sensitive during the activity for making sure children could explore the challenge in safety, which will significantly reduce the number of children with autism who produce behavior problems. This article could provide references to the relevant research field of fathers' affection for children with autism in early childhood. Future research can adopt more field visit observation strategies to collect data, which could increase the honesty and integrity of the data.