Personnel file retrieval does not accept personal retrieval, and the current employer or file storage unit should send an official letter to the file storage place for retrieval. Personnel files are an important feature of China's personnel management system. They are evidence of personal identity, education, qualifications, etc. They are closely linked with personal salary, social labor security and organizational relations, and have legal effect, which is an important basis for recording life trajectory. College students' files are an integral part of national personnel files, a true historical record of college students' life, study and various social practices, and the main basis for college students' employment and the selection, appointment and assessment of various units in the future. Institutions and personnel files are very important. Institutions that provide the service of keeping archives, local talent markets, district and county talent markets and streets, etc. According to China's Archives Law, Regulations on the Work of Cadres' Archives, Interim Provisions on the Management of Floating Personnel's Archives and other laws and regulations, graduates' personnel files belong to public information that is legally enforced and managed by the state, and individuals may not intercept or destroy them.