In clinical practice, there are many noticeable problems with TCM disease diagnosis when it comes to neurological diseases, such as diagnosis difficulty and misdiagnosis. The important reasons behind this situation are that, in comparison with western medicine, the number of disease names in TCM is much less, and their levels are much lower. After analyzing the basic theory, textbook standards, clinical research, etc., this paper suggests the adoption of western medicine diagnosis in TCM disease diagnosis while sublating numerous low level of TCM disease names, so that the diagnosis in a TCM case report will be simplified to be a combination of western medicine diagnosis and TCM syndrome diagnosis. The integration of western medicine diagnosis embodies the development, while the preservation of TCM syndrome diagnosis reflects the inheritance. This diagnosis model is clinically more practical, which helps to solve the above-mentioned problems, keep pace with the times and be geared to international standards, while in theory, it will promote TCM understanding of zang-fu organs (especially brain) and set up a disease differentiation and treatment theory. This disease differentiation and treatment theory will be more targeted at disease in comparison with syndrome differentiation and treatment. It is believed that once the theory is set up, it will be a significant model revolution since the establishment of syndrome differentiation and treatment in TCM, which may break through the tradition, step into modernization, and make significant contributions to the development of modern medicine.