The study focuses on the internal structure of digital conservation and intellectual property management system, aiming to construct a digital conservation and intellectual property management system for intangible heritage of conventional Chinese physical activities in the public domain. Firstly, by exploring digital techniques and introducing the TAM-TOE model, the implementation path of digital conservation and intellectual property management system for intangible heritage of conventional Chinese physical activities in the public domain is analyzed from three dimensions: organization, technology, and environment; Secondly, the study proposes specific strategies as illustrated by database classification design, innovative development, resource integration, and sharing paths. At the same time, it points out that the digital conservation and intellectual property management of intangible heritage of conventional Chinese physical activities currently face challenges as illustrated by low adaptation of digital conservation technology, incomplete systems, slow updating of concepts, and lack of mutual promotion mechanisms between culture and digital techniques. This research provides a reference for the layout of digital techniques in the course of protecting intangible heritage of conventional Chinese physical activities, emphasizing the importance of building a unified framework to facilitate its innovative inheritance and development.