Purpose: With the rapid development of technology and individual life styles, Korea faces ever-increasing mental diseases caused by divorce, suicide, alconhol, drug addiction, and internet addiction. To reflect this, the quantitative expansion of mental health centers that make up is time. The purpose of this study is to understand the current situation of standard mental health centers by analysing Seoul`s cases of mental health. First, this study presents the direction of mental health policy through specific examples about the function of public and private sectors. Second, advantages and disadvantages of the facilities will be delineated through in-depth comparisons and analyses, ultimately providing architectural quidelines for establishing future standard mental health center. Methods: Data were collected through literature research, field surveys, and expert interviews to standard mental health centers in Seoul. In the field investigation, we collected various data(archittectural plan, dimension, photos) by visiting standard mental health centers. Data were analysed by content analysis. Results: The result of this study can be summarized into three points. The first one is that Mental health environment changing role of the mental health center is derived the spatial variations. The second one is that Standard Mental Health Center is divided into four sectors. Implications: It is necessary to give and architectural suggestion of mental health center in response to the proposal of the system.