This study aims at investigating how comprehensive child support centers are utilized, managed, and planned, then clarifying the defining characteristics of the centers based on questionnaire data collected from 611 centers. Consequently, the number of employees is two per a center on average, but it varies from one to 20. Public health nurses account for 45% although midwives account for only 5%. Multivariate analysis identifies four factors that significantly impact the number of users. Cross tabulation illustrates that the centers can be classified into two categories: one is provided at health centers and city halls; the other at child centers.