Early childhood English teaching has become a hot topic with the development of informatization and economic globalization, which deserves the urgent attention of schools, teachers and parents. After analyzing the current status of early childhood English teaching, we found several problems including difficulty in inspiring children's learning interest, lack of teaching situation, and low study efficiency. This paper proposes a new method for teaching early childhood English by designing augmented reality (AR) resources based on Situational Theory. Then, we build an English teaching mobile app...