This study aims to clarify how to decide the unit indicator based on the facilities capability, by the investigations on following two points. 1) To determine the unit indicator for outpatient department, we verify the correlation of specifications including the average number of outpatients per day. 2) To examine the characteristics of the distribution, we accumulate various data as a database based on the unit indicator, for hospital facility management. As a result of examination, although the strong correlation of factors is few, the significance of examining these parameters as a distribution is shown.