Pharmacist training in the pharmacy intravenous admixture service (PIVAS) center is a core component in ensuring the quality of finished infusions and medication safety. Based on the Quality Management Standard for Centralized Intravenous Admixture (2010) and the Notice on Issuing the Guidelines for the Construction and Management of Pharmacy Intravenous Admixture Services (Trial) (2021), the PIVAS center of Peking Union Medical College Hospital, guided by the concept of post competency, has developed a tiered training model tailored to the work requirements of different PIVAS positions (such as prescription review, drug admixture, and finished product verification). Concurrently, by integrating common admixture errors observed during training and routine practice, the program incorporates error-prone content into teaching priorities and dynamically adjusts the training plan, thereby providing a reference for the development of pharmacist training systems in China.