In recent years，the increasingly wide combination of knowledge graph，natural language processing as well as search technique has become a new hotspot in the field of knowledge service.Nowadays，the application of knowledge graph in the field of traditional Chinese medicine(TCM)is mainly focused on visual analysis.There is still no TCM knowledge graph that can support the fields of natural language processing and knowledge service.In this paper，Neo4j graph database is used to construct a small knowledge graph based on Guizhi Decoction associated formulas in Treatise on Cold Damage，which can realize functions of visual analysis and searching on syndromes，formulas and medicines of Guizhi Decoction associated formulas.Results of the study prove the feasibility of this method，and lay the foundation for future development of the combination of TCM knowledge graph and deep learning technology.