Against the backdrop of fostering virtue through education, high school moral education requires deepening home-school collaboration and consolidating the synergy of educational forces. Take multiple high schools as research subjects, this paper combines questionnaire surveys and in-depth interviews to analyze the current status, existing problems, and causes of home-school collaborative moral education. It constructs a scientific and feasible integrated management model for home-school collaborative moral education, clarifies the guiding philosophy and implementation paths, and establishes a four-dimensional support system covering systems, resources, technologies, and evaluation. By verifying the effectiveness through case studies, this paper provides a theoretical basis and practical reference for high school home-school collaborative moral education.