Abstract: In 2008, China's Ministry of education established the system of vocational education skills competition, which also made the vocational schools develop to a new stage and promoted the reform of vocational colleges. Every vocational college began to integrate into the skills competition, select excellent talents from the school to participate in the competition at the county level, city level or even national level, through the competition to exchange talents, improve the skills level of talents. In this paper, the role of harmonious and efficient classroom teaching construction of numerical control skills competition and the status quo of traditional numerical control skills teaching are described, and the innovation strategy of harmonious and efficient classroom teaching mode of numerical control skills competition is put forward.

Key words: Numerical control skill competition, Efficient classroom teaching, Innovation