This paper discusses the application of revolutionary cultural heritage in digital innovative design and proposes a method for constructing a knowledge graph of revolutionary cultural heritage. Revolutionary cultural heritage is not only a witness to historical periods but also serves as the objective carrier of Red Culture. The key focus of this study is to use digital technology to protect and inherit these cultural heritages by integrating scattered resource information through the construction of a knowledge graph, thereby enhancing the efficiency of cultural expression and inheritance. Methodologically, the article details the extraction of entity datasets, the construction of the knowledge graph, and the definition of relationship datasets, emphasizing their importance in digital innovation design.The construction of the knowledge graph includes extracting entity and relationship data from open-source data and establishing a multi-level relationship network to support design retrieval and application. In the design application section, it proposes integrating the knowledge graph into the digital cultural innovative design workflow to address the issues of designers' lack of understanding and difficulty in accessing information about revolutionary cultural heritages in the early stages of design. By applying the knowledge graph, designers can quickly obtain cultural heritage information related to the project, effectively enhancing the spiritual and aesthetic expression of the design outcomes.In summary, the establishment and application of the revolutionary cultural heritage knowledge graph not only strengthen the digital protection and innovative application of cultural heritage but also provide important reference resources and inspiration for digital cultural innovative design, promoting the modern design inheritance and development of Red Culture characteristics.