The purpose of this paper is to discuss and measure how entrepreneurship is implemented as transversal competence in the school system in Europe and in particular in Spain. In the field of economics of education, we contribute to the discussion about the impact of education on entrepreneurship intention as key element for Europe’s socio-economic development. We focus on role of teacher as center of debate in European policies on entrepreneurship. Concept of “entrepreneurship” at school level is discussed. Research is based in data analysis collected by self-assessment questionnaire Measurement Tool for Enterprise Education. This tool has been developed and applied in Finland and adapted to the Spanish context. This method, validated by the EU to measure entrepreneurial education politics implementation, evaluates willingness of teachers to promote entrepreneurship- oriented instruction. The data consist in 173 teachers of different education levels categorized as “motivated” to promote entrepreneurial competence. The results show differences in teacher’s attitude as condition for entrepreneurial competence implementation, as well as significant differences in entrepreneurship education development between private and public school. In conclusion, we emphasize a lack of implementation as a cross-curricular competence because it is highly conditioned by level and subject taught.