PURPOSE: The purpose of this study was to develop a health education program for child care workers of infants, toddlers and preschoolers to improve their care ability. The program provided child care teachers and children with information on how to take care of their health. METHOD: This program development was based on a systematic design of instruction by Dick & Carey(1996). The process included a review of literature, setting an instructional goal, getting advice from various experts, designing instruction and instructional medias, designing formative evaluation, revising the program and making a summative evaluations. RESULT: The products of this program were the 'Teachers Guide Book & CD-ROM." The guide book included health education programs for infants, toddlers and preschoolers. The infant program included a basic baby care program for teachers. The toddlers and preschoolers program included basic health promotion, dental health, nutrition management, communicable disease prevention, substance abuse prevention and a safety program. CONCLUSION: These programs provided a systematic content of health education for children andtheir teachers, and useful data which can be applied to child care centers.