Professional titles are mainly divided into three grades and five detailed grades: 1. Junior title: (1) rank. For example, technicians and third-level teachers. (2) Assistant level. Such as assistant engineers, assistant economists, technical secondary school teachers, etc. Second, engineers, lecturers, attending doctors, first-class teachers and other intermediate titles. 3. Senior title: (1) Deputy Senior. Such as senior engineer, associate professor, associate researcher, deputy chief physician, senior teacher, etc. (2) It is advanced. Such as: senior engineers, professors, researchers, chief physicians, senior teachers, etc. Professional titles can be evaluated and tested. Generally speaking, those who have the qualifications for professional title evaluation can directly evaluate their professional titles without taking part in the national unified examination, which has the same effect as the professional titles obtained through the examination and is recognized by government agencies and state-owned enterprises and institutions, and can transfer the professional title evaluation files to the personnel department of the unit where they belong. If some people don't have the qualification to evaluate professional titles and want to obtain professional titles, they need to take the national unified examination. Therefore, professional titles can be evaluated and tested, and the evaluation effect is equivalent and universal throughout the country.