This article approaches secondary Vocational Education & Training (VET) in Portugal from a historical-educational perspective, namely the professional courses introduced in 2004 in public secondary schools. Its implementation aimed to obtain a qualified technical workforce and to fight against the high failure rate and school dropouts registered in technological courses. It was also proposed, to complete 12-year compulsory education, qualifying students for the exercise of a profession as level IV technicians of the national qualifications framework (NQF). As a result, the number of students enrolled in this modality has progressed from a residual value of 10% in 2004 to 39.7% in 2018. On average, its attendance in the European Union (EU) was 54.6%, with special emphasis on Finland and the Czech Republic, whose indicators were, 71.6% and 71.3%. With the emergence of the COVID-19 pandemic came the unplanned closure of schools in the spring of 2020, imposed to protect the well-being of society, but which caused discontinuities. This research concludes by taking into account professional education in Portugal and the EU in the context of the COVID-19 pandemic, also considering the opinion of educational actors (course directors, teachers, and students) on the functioning of VET in Portugal.