The paper presents theoretical issues concerning the possibilities of application of the HACCP system rules in the process of improving the quality of education in secondary schools. The carried out analysis show that it is possible to apply the HACCP system rules in secondary schools. Implementation of the HACCP system rules in schools can be beneficial in four areas: economically-financial, organisational, educational and social. Moreover, the education security would increase, the intellectual loss and failure of students would be diminished and on the educational market an increase of competitiveness and trust to school and its graduates would be observed.