At present, the most authoritative certificate in the field of teaching Chinese as a foreign language is the certificate of international Chinese teacher, which is sponsored by the Chinese-foreign language exchange and cooperation center of the Ministry of Education.

Other certificates in the market, such as TCSL, belong to the primary qualification certificate of teaching Chinese as a foreign language, which can be understood as graduation certificates after professional training and study.

If the certificate of international Chinese teacher in language center is like IELTS TOEFL, then other certificates are like CET-4 and CET-6.