OBJECTIVE: To investigate the standardization and rational medication of prescriptions of traditional Chinese medicine （TCM） decoction pieces in Beijing Friendship Hospital affiliated to Capital Medical University （hereinafter referred to as "our hospital"）

so as to provide a basis for strengthening prescription management and improving prescription quality.METHODS: Prescriptions in our hospital on any two days of each month in 2019 were randomly abstracted and retrospectively reviewed according to the "Prescription Management Measures"

"Traditional Chinese Medicine Prescription Format and Writing Specifications"

"Chinese Pharmacopoeia " （2015 Edition）

"Hospital Prescription Review Management Practices"and "Regulations for Dispensing Traditional Chinese Medicine Decoction Pieces of Beijing".RESULTS: A total of 4 785 prescriptions of TCM decoction pieces were reviewed

426 were irrational prescriptions

with the irrational rate was 8. 90%; of which 160 were nonstandard prescriptions （accounted for 37. 56% of all the irrational prescriptions）

including special requirements such as drug preparations and decoctions that were not marked as required and the drugs in the prescription were not arranged in the order of assistant and guide; 185 prescriptions were inappropriate medication （accounted for 43. 43% of all the irrational prescriptions）

including inappropriate dosage

improper indications

incompatibility or adverse interaction

inaptitude administration route and repeat dosing; 81 were abnormal prescriptions （accounted for 19. 01% of all the irrational prescriptions）

including too large amount of prescription cost and too much categories of TCM.CONCLUSIONS: There are still some problems in TCM prescription in our hospital

which should be paid attention to the standardization of prescriptions of TCM decoction pieces to ensure clinical safe medication.