OBJECTIVE： To provide reference for storage management of injection drugs protected from light in inpatient pharmacy of hospital. METHODS： From Jan. to Mar. 2016， the storage items of injection drugs protected from light in inpatient pharmacy of our hospital and the current storage situation were surveyed， the quality management tool PDCA circulation was adopted to improve storage situation and evaluate the effect of PDCA. RESULTS： For improper storage of injection drugs protected from light caused by employees lacking knowledge in photophobic knowledge， unfamiliar to the list of injection drugs protected from light， no packaging in returned drugs， after developing and carrying out corresponding countermeasures， including reinforcing staff training， studying characteristics of the new-coming drug timely， renewal photophobic knowledge and the list of injection drugs protected from light， and ameliorating working procedure， the light storage pass rate was increased from 96.5％ to 100％ in 310 injection drugs protected from light in inpatient pharmacy. CONCLUSIONS： Appling PDCA can effectively improve the storage management of injection drugs protected from light and provide reliable protection for the drugs’ safe and effective application.