This study investigated the current status of Thai teacher institutions in regard to environmental problems and proposed an environmental curriculum system for teacher training in Thailand. An interview questionnaire was designed to gather descriptive data about selected Thai teacher institutions, teaching strategies utilized in environmental-related courses, and the employment of ten selected environmental-related problems in three aspects: (1) courses offered at Thai teacher institutions, (2) environmental research conducted by faculty members of Thai teacher institutions, and (3) environmental services provided to the public by faculty members of Thai teacher institutions. Of the seventeen Thai traditional teacher institutions considered, representatives from fifteen (88 percent) were interviewed.