To achieve policy goals of new medical reform, a control line of drug proportion was delimited for hospitals by the Department of National Administration. However, to formulate criteria of drug proportion in a scientific and rational approach has been a challenge, which plagued numerous medical workers. This study aims to analyze the baseline data of drug proportion and its impact factors in clinical departments, and quality control charts are applied to explore an estimating method and process for rationally formulating an index criterion of pharmaceutical management, so as to provide a reference for hospital management practice.
