Objective: To study the development of Traditional Chinese Medicine(TCM) services at the grassroots level in Beijing during the 13th Five-Year Plan by analyzing the development of Chinese medicine expenditure of primary medical institutions in Beijing. Methods: A case-base aggregation method based on scaling factors is applied. Results: During the "13th Five-Year Plan period" , TCM service capabilities in primary health care institutions had achieved coordinated development with the health system. Community health service institutions were the main body of grassroots TCM service provision. Traditional Chinese medicine services in primary medical institutions were mainly based on the provision of pharmaceutical services. Conclusion: Beijing should take advantage of the development opportunity to further enhance the capacity of TCM services in primary healthcare institutions; promote the development of TCM outpatient clinics and clinics through multiple channels; and develop special TCM primary services to improve the quality of TCM development at the grassroots level.