The application for examination and approval of enterprise employees' historical information refers to the business of Shenzhen Social Security Bureau called "application for examination and approval of enterprise employees' historical information", that is, "the business of examining and approving enterprise employees' historical information in advance with pension insurance as the payment period", in order to help people who are nearing retirement know the deemed payment period in advance and know the payment situation of their own pension insurance. In the absence of personnel files, the application for examination and approval of enterprise employees' historical information can have sufficient time to supplement it.