The aim of the study is to determine the perception of workload of primary and secondary school teachers in Turkey in accordance with teachers’ opinion. The research data were collected using phenomenological pattern which is one of qualitative research methods, and analysis of documents was made. The research was made on 72 Primary and Secondary school teachers who have at least three years seniority working in 24 schools subordinate of Directorate of Istanbul Provincial Education. Data were collected through semi-structured interviews. The analysis of the resulting data was conducted by inductive content analysis. In the study, teachers generally state that security duties of teachers should be transferred to the security companies, and teachers should not interfere to the duty of collecting money from students in no way under any intentions. Again, according to the findings of the research, the most fatiguing, puzzling and time consuming issues as for teachers should be reduced which are, documents and correspondences, student tracking and control, disciplinary procedures, administrative meetings, collection of dues, ceremonies and celebrations, home visits and development of material as well. Questions of survey related to special education and guidance and counseling services should be asked by experts of this section and related ones since the related questions include very special subjects for children; as for data entries, they must be done by the school officers. The results are significant due to the fact that they offer a sight for the stakeholders about the works stated in teachers’ job description and the perception of the teachers themselves related to their workload.