According to the information of official website Middle School of East China Normal University, East China Normal University is a national key university directly under the Ministry of Education, and the pre-school education of East China Normal University needs a work permit, which generally takes about 6 months from registration, training to obtaining a certificate.

Employment certificate refers to the qualification certificate of a certain industry or post, which is manifested as the objective existence or qualification of ability and conditions. However, employment certificate in China involves too many industries and needs to be obtained through inspection or assessment.