From the background of visualization technology, the difference between the information visualization and knowledge visualization in terms of origin, theoretical basis, purpose, visual object, description type, tool, actor, application and complementary method were compared. It is believed that information visualization is based on explicit knowledge, which will explore the new rules as the purpose, so as to make users more efficient and intuitive grasp and analyze data. Knowledge visualization is based on explicit knowledge and implicit knowledge, which will improve the transmission and utilization of knowledge between groups as the purpose, so as to improve the dissemination and exchange of knowledge, strengthen the density of knowledge, improve decision-making and problem-solving skills. Combined with the characteristics of Chinese medicine knowledge, this study explored the relevance of TCM and visualization techniques, analyzed the application of visualization technology in the field of TCM, expected to provide more thinking for the development of Chinese visualization technology and the design of TCM visualization platform.