The Sydney Agreement is one of the most influential mutual recognition systems in the field of international engineering education. It is applicable to the engineering and technical majors of higher vocational education in China. At present, although China has not yet joined the agreement, in order to strengthen the international recognition of professional education, in line with the trend of talent internationalization, the entry of higher vocational education into the Sydney Agreement has become an inevitable trend of professional development. This paper proposes a “5+2” model for the assessment of the achievement of graduates' core competencies in the certification of the Sydney Agreement, ensuring the objectivity and effectiveness of the assessment results, and continuously improving the core competence of the students. Cultivation provides an effective basis.