Very profitable. Public examination training lecturer refers to the teachers of public examination training institutions. Public examination training lecturers earn a lot of money. According to the individual teaching ability, class hours, teaching quality and the scale of training institutions, the income of public examination teachers is different, but the income is generally higher, and the normal work can generally earn 20,000 yuan to 30,000 yuan a month. Therefore, public examination trainers are very profitable in small institutions.