This study was based on the project prophase of expert consultation and literature consult, and aimed to analyze the medicine establishment from the perspective of traditional Chinese medicine (TCM) doctors, in order to further study the influence of medical insurance on the development of TCM. Detailed suggestions were made in or-der to promote the benign development trend of TCM and medical insurance. Questionnaire survey was used in the investigation on perceptions of TCM related with medical insurance among 253 TCM doctors in appointed medical institution of medical insurance. Data was processed with frequency statistics. The results showed that after becoming the appointed medical institution of medical insurance, the medical insurance patients have become the main service group (73.5%) of hospitals (68.4%) and incomes of TCM doctors (41.9%) have increased, which contribute to TCM hospitals of becoming bigger and stronger (63.6%). The medical insurance patients have chosen TCM treatment main-ly for its curative effect (37.9%) and safety (24.1%). The influence of reimbursement ratio in medical insurance was relatively low (1.2%). The reimbursement range of TCM medical insurance needs to be further expanded, such as Chinese medicine nosocomial preparation (90.5%), decoction preparation fee (78.3%), and etc. It was concluded that under the background of universal health coverage, medical insurance plays a more and more important role in the development of TCM. And TCM should ensure its safety and improve its curative effect through the standardization of TCM and other measures. Meanwhile, the formulation of medical security policy and medical insurance management service standards should also consider the characteristics of TCM, and encourage the service of TCM.

Target trail emulation is an observational research method, which can use real-world data (such as observational data and historical data) to carry out research design according to the design principles of randomized controlled trials (RCT) when RCT cannot be carried out. The intervention group and the control group were classified by simulating random grouping. Finally a high-reliable conclusion similar to RCT can be obtained. This paper summarizes the basic concepts and application process of target trail emulation based on the effect of statins on the prognosis of myocardial infarction in diabetic patients to provide reference for the application of this method in real world.