The preparation of Vocational School teacher candidates who have technical skills and employability skills begins with the learning process. This paper aims to formulate learning strategies based on scientific approach to strengthen employability skills for vocational school teacher candidates. This study employed a quantitative approach with a non-experimental survey design. The samples in the study consisted of 120 vocational teacher candidates in the Automotive Engineering Education Program, Faculty of Engineering, Semarang State University who took car body's electrical system practice course. Research data were collected with test questions, observation sheets and questionnaires. The research data were analysed using descriptive analysis, regression analysis. The results showed that the implementation of learning strategies with scientific approach significantly strengthen employability skills of vocational teacher candidates with a contribution of 22.0%, while the remaining 78% was influenced by other factors. The reinforcement of employability skills vocational teacher candidates resulted in the reinforcement of the competitiveness of prospective graduates. When they have become vocational teachers, they are able to produce competitive vocational school graduates in 4.0 industry era.