As an information resource collection institution, the comprehensive archives bear important responsibilities in the protection of personal information. With the implementation of laws such as the Personal Information Protection Law of the People's Republic of China, multi subject co-governance has become a key direction for the protection of personal information in comprehensive archives. records creators, archive users, administrative regulators, data departments, and social forces are important entities involved in the protection of personal information in comprehensive archives, which are interrelated and have different responsibilities. To achieve effective co governance, it is necessary to establish front-end control collaborative protection mode, collaborative mutual trust mode, collaborative governance mode, reciprocal governance mode, and participatory governance mode separately. The multi subject co-governance model provides a systematic practical path for the protection of personal information in comprehensive archives, helping to promote the high-quality development of the archival industry in the field of personal information protection.