The scientific research of German vocational education, just like its role in promoting the economy, has attracted worldwide attention and has always been in the leading position in the world. If the secret weapon of Germany's economic take-off is Germany's dual vocational education, then it is Germany's high-level vocational education teachers who have made these secret weapons, the scientific research of German vocational education has promoted the development, reform and innovation of vocational education, and it is the theoretical basis of German vocational education teacher training. In Germany, where world famous philosophers such as Hegel and Kant and great founders of scientific socialism such as Marx and Engels were born, their speculative tradition had a great influence on the scientific research of vocational education. It is in this speculative soil that many theoretical achievements with the characteristics of vocational education have been produced, highlighting the laws of vocational education itself. Throughout the world today, only German-speaking countries (Germany, Austria, Switzerland) regard vocational education as an independent subject of universities, gather a large number of experts and scholars specializing in vocational education research, establish high-level research institutions, give full play to the university function of combining teaching and scientific research since Humboldt University, not only cultivate a large number of high-level vocational education teachers, but also obtain many internationally influential vocational education scientific research achievements. Vocational education teacher training institutions and corresponding vocational education research institutes have been established in 24 research universities, including the famous Dresden University of Technology, Aachen University of Technology, Berlin University of Technology, Darmstadt University of Technology, Munich University, Hamburg University and Humboldt University, which provide strong theoretical support for the development and innovation of vocational education in German vocational schools and enterprises.