The "1 + X" certificate system promotes the development of vocational education in China in a new direction. Under this system, the talent training goal of vocational education in China is more clear, that is, to cultivate all‐round development of compound talents. The cultivation of compound talents requires high‐quality and high‐level teachers, which puts forward new requirements for the construction of teachers in secondary vocational schools. The requirement of students' X certificate is bound to put forward higher requirements for the teaching level of secondary vocational school teachers. At present, the double‐qualified teachers of mechanical specialty in secondary vocational schools are weak, which hinders the training of students with 1 + X certificates. Starting from the needs of schools and society, this paper puts forward a new construction path for "double‐qualified" teachers of numerical control specialty in secondary vocational schools.