Abstract: With the continuous development of power network video surveillance system, the security problem of video terminal access to the surveillance system is also increasingly prominent. Information leakage, data tampering and malicious attacks need to be solved urgently.Aiming at the application status and security risks of power network video surveillance system, combined with the requirements of power security protection, this paper designs a video terminal security access system based on business secret algorithm, which can realize the security access of power video terminal. Finally, the system can satisfy the security and protection requirements of power video surveillance through experimental test and analysis.

Key words:  , business secret algorithm； power network video surveillance system； video terminal； secure access