Abstract: Through the pilot work and experience accumulation, the '1+X'certificate system is the system design to implement the integration of industry and education, and will become a unique training mode and evaluation system of vocational education in the future.As the inheritance and development of double certificate system, vocational skill level certificate, the 'X', will benefit not only schools and students, but also industrial enterprises and employees on the job, and the certificate standard will be more suitable for the implementation of teaching and training in vocational colleges.Based on the development of vocational skill level certificate, this paper puts forward some ideas on implementing the certificate system.