Private economy is an important part of socialist market economy, and the archives work of private economy is also an important part of national archival undertaking. When supervising the archives of private economy, the archival administration department should follow the three principles of legality, applicability and effectiveness, establish the conception of ecological development, autonomous management, normative guidance and moderate supervision, proceed from the reality, do a good job in five aspects: archives propaganda, guidance help, cooperation and integration, examples setting, and resource construction, and promote the collaborative development of private economic archives work and private economic organizations.