In organizing health services in hospitals, drug management is one of the important parts considering that pharmaceutical installations in managing medicines at the hospital cost around 50-60% of the total Hospital budget. The complex stages of the drug management cycle include distribution and storage, in which the process of activities affects the cost, drug safety and appearance of the hospital. Based on these reasons, each part of the hospital unit needs to pay attention to the management of the drug in order to meet the standards and prevent losses that may occur in the drug management cycle. One of the important health care units to consider is the Central Surgery Installation. Then this study aims to describe the drug storage process of the floor stock distribution system at Central Surgery Installation in the PKU Muhammadiyah Gamping Hospital based on SNARS 1st Edition 2017. The research method used was descriptive qualitative with a case study study design. Data collection using observation, indepth interviews and documentation methods. The location of the study was conducted at Central Surgery Installation PKU Muhammadiyah Gamping Hospital. The subjects in this research were Central Surgery Installation Pharmacy Staff, Supervisor of Central Surgery Installation and Nurses of Central Surgery Installation. Observation is carried out by filling out a check list based on SNARS 1st Edition 2017 conducted before being given treatment and after being given treatment. The results of observations using the check list of SNARS 1st Edition 2017 prior to treatment were 63%. The percentage after seven weeks of improvement has increased to 86%, thus the results of treatment that has been done can increase the standard achievement value by 23%.