This is a case study of activities and space utilization in an IV (intravenous injection) center, in outpatient department of hospitals. Interviews to staff, mapping of spatial setting, and time studies on the utilization of beds were conducted. The findings were as follows : 1) Various kinds of drip infusions, including chemotherapy treatments for cancer patients, are practiced in the IV center. Most patients are revisited for followup treatments. 2) The IV center consists of areas with different functions and spatial settings. Various types of beds and easy chairs are installed for patient needs. 3) For cancer patients, the installment of gurneys and medical tubing (oxygen, aspiration, air supply) are needed. 4) Length of occupying each beds was depended on the drugs and injection methods used.