OBJECTIVE：To understand the current status of clinical understanding of “prohibiting”“avoiding”“using caution ” in the application of TCM ，and to provide reference for standardizing the connotation and rational application of “prohibiting” “avoiding”“using caution ”of TCM. METHODS ：Based on the theory of “knowledge-attitude-behavior”，doctor-pharmacist questionnaires and patient questionnaires were designed on the basis of literature research and clinical practice. Through the “Tencent questionnaire ”platform，800 doctor-pharmacist questionnaires were distributed to nearly 300 medical institutions from 32 provinces（cities，autonomous regions ）and 800 patient questionnaires were distributed to public patiants who had used TCM nationwide by anonymous online method. After dimensionality reduction of the questionnaire from three dimensions of cognition ， attention and behavior ，the cognition ，attention and behavior of “prohibiting”“avoiding”“using caution ”in the application of TCM were evaluated by 10 points system. RESULTS ：A total of 703 doctor-pharmacist questionnaires were collected ，including 638 valid questionnaires with recovery rate of 87.9％ and effective rate of 90.8％；Cronbach alpha coefficient was 0.90. A total of 644 patient questionnaires were collected ，including 621 valid questionnaires with recovery rate of 80.5％ and effective rate of 96.4％ . The cognition score of doctors and pharmacists to the terms of “prohibiting”“avoiding”“using caution ”in clinical application of TCM was （7.94±1.21），and that of patients was （5.64±1.54）. The score of doctors and pharmacists ’attention to the above terms was （9.47±1.15）（Spearman Rho correlation coefficient with cognition score was 0.077，P＞0.05），and the score of behavioral ability of patients was （7.01±1.71）（Spearman Rho correlation coefficient with cognition score was －0.021，P＞ 0.05）. The score of behavior ability was （7.43 ± 1.72） （Spearman Rho correlation coefficient with cognition score was 0.233，P＜0.01）. TCM textbooks （89.2％），trainingmeetings （66.5％） and herbal prescriptions （58.2％） were the main ways for doctors and pharmacists to learn the above taboos. Medical staff （74.2％）and internet （52.5％）were the main ways for patients to understand the above taboos. CONCLUSIONS ：Doctors，pharmacists and patients pay more attention to the terms of “prohibiting”“avoiding”“using caution ”in the clinical application of TCM ，but their cognition and executive power were low. Clinical cognition of “prohibiting”“avoiding”“using caution ”in the application of TCM is relatively vague，and the corresponding clinical practice behavior is lacking. It is yet to establish clinical specialist consensus in the field of TCM and publicize it actively to improve the level of clinical rational drug use.