Attempts to promote early intervention (EI) for psychiatric disorders are becoming accepted worldwide. Although several attempts at EI have begun in Japan, this movement is still limited, and the development of concrete EI services suited to individual regions is required. At the Miyagi Psychiatric Center, the "Natori EI project" is being carried out with the aim of improving the mental health of young people. This project involves three activities: consultation and mental health promotion in high schools, specialized outpatient clinics for young people, and psychosocial intervention for first-episode psychosis. There are many difficulties in building a system to support this kind of EI within the framework of the conventional medical care system; it is necessary to sort out issues such as collaboration with government and educational institutions, sharing the basic principle of EI, medical economic problems, ensuring manpower, and staff training system.