The existing healthy development evaluation scheme has defects like a long life cycle, subjective sense, single evaluation index and many others, which has restrictions on the children's long-term development and preschool education informatization. Therefore, this paper introduces the evaluation method of AHP-BPNN. According to the physiological and psychological characteristics of children's development, it uses the AHP analytic hierarchy process to establish scientific and multidimensional evaluation system. Meanwhile, the initial weights is initialized. Then it makes the improved BPNN analysis to optimize the weight, to get a more optimal parameter solution. Based on the continuous practice of 214 children in a kindergarten in Shenyang for 90 days of observation, it shows that the proposed method greatly reduces the subjectivity of teacher evaluation, makes the evaluation system more scientific, reasonable and perfect, and gives a comprehensive guide.