90 class hours According to relevant public information, teachers' professional titles have clear requirements for continuing education hours, and they need to complete 90 hours of continuing education in the same year. The requirements of this class are not exactly the same kind of subjects, and some require 30 class hours for public subjects and 60 class hours for professional subjects; There are also 30 hours of public subjects, 42 hours of professional subjects and 18 hours of elective subjects; Individual requirements also include no less than 60 hours for professional subjects, and no less than 18 hours for public demand and industry demand.