The digital transformation of education has increasingly highlighted the value of “home-school-society” collaborative parenting practices. “Home-school-society” collaborative parenting not only has its own unique core issues, but also faces new development opportunities in the context of digital transformation of education. The digital transformation of education has provided support conditions and action rationale for “home-school-society” collaborative parenting in terms of value concept, problem structure, and evolutionary dynamics. Based on the judgment of the core problems and development opportunities of “home-school-society” collaborative parenting, and on the basis of its logical transformation, we explored and proposed the practice mechanism of “home-school-society” collaborative parenting, i.e., to put collaborative parenting into practice from three aspects: main body linkage mechanism, integration and co-parenting mechanism, and demand-driven mechanism. In other words, it links the various structural parts of collaborative education practice from the three aspects of the main linkage mechanism, integration and coeducation mechanism and demand-driven mechanism, so as to make them function in a coordinated manner and realize the practical implementation and deepening of collaborative education, thus supporting the high-quality development of education with high-efficiency collaborative education, and providing a solid foundation and realistic breakthroughs for the realization of the modernization of Chinese-style education.