Abstract: Children’s sex education has attracted more social attention, but the picture book publication in the field is stuck in a more embarrassing dilemma. Based on the investigation of the current situation of the publication of picture books for children’s sex education, the paper analyzes the data of the entities of these picture books circulating in the market through the content analysis. It identifies problems in the publishing process, such as the weak child-centered view, uneven distribution of educational themes, leaning on one gender, and improper transmission of values. It continues to put forward feasible suggestions for improvement. The research results give certain guidance for sex education within family, book publication and reading promotion in the field.