The transition period of professional title reform in colleges and universities is 3-5 years. The Ministry of Education's Regulations on the Appointment of Teachers in Colleges and Universities (revised on 20 19) stipulates that the transition period of professional title reform in colleges and universities is 3-5 years. Article 36 of this regulation clearly stipulates that after the reform of professional titles is implemented, colleges and universities will continue to use their original professional titles for a transition period of no more than five years. The specific transition period shall be formulated by the provincial education administrative department according to the local actual situation. Therefore, the transition period of professional title reform in colleges and universities is 3-5 years, and the specific transition period varies from region to region.