During winter and summer vacations, parents are busy with work and have less time to accompany their children. Parents pay more and more attention to children’s independent learning. Therefore, it is particularly important to cultivate children’s self-learning ability. As an indispensable prop in the process of children’s growth, teaching toys play a positive role in children’s forming good habits and building up self-confidence. This article is based on STEAM education concept, through the analysis of the characteristics of existing auxiliary teaching toys, starting from the psychological and behavioral characteristics of children and parents, analyze their demand for auxiliary teaching toys, summarizes the design principle of auxiliary teaching toys, puts forward the design method of the auxiliary teaching toys, provide a reference for toy designers and children’s education.