BackgroundTo explore the needs of preoperative health education of parents，whose children undergoing day surgery, and to provide reference for nurses to carry out health education. MethodsThe parents whose children undergoing day surgery in Guangzhou Women and Children,s medical center from January 2021 to February 2021 were selected as the research objects. The needs of parents for preoperative health education were investigated by questionnaire, and the needs and satisfaction of parents for the timing, content, ways and push methods of preoperative health education were observed. Results591 questionnaires were distributed and 578 were recovered, with a recovery rate of 97.80%. The results showed that the parents had the highest demand for preoperative health education when they made an appointment for day surgery. The most desired content of health education was admission procedure, and the most desired way to receive health education was through video. The most acceptable push mode was through WeChat official account. Parents' satisfaction with the current health education was 94.64%. ConclusionsThe content of preoperative health education should be formulated according to the needs of parents, whose children undergoing day surgery. The time of providing health education should be moved forward. Health education videos should be given first, combined with a variety of health education methods, and health education videos should be pushed through WeChat official account or WeChat video number, so as to ensure the smooth development of children's day surgery and enhanced recovery after surgery.