This paper aims firstly to give an overview of the development of German language, teaching in Thailand at both high-school and, university levels from the past up to the, present time, since German has been taught, in Thailand for more than 80 years and its development has not been studied and documented systematically or continuously. The survey and analysis of German teaching, in Thailand in this paper deal with history, teaching approaches, curricula, the development of teaching materials, the number of German language teachers, students, and schools, the attitudes of German language teachers, the expectations of and attitudes towards German teaching among high-school students, and an analysis of the decreasing number of German language teachers and students. Furthermore, this paper also showcases other research works, support organizations, and activities for German language teaching in Thailand.