Safety control method of digital television terminal equipment

The invention discloses a safety control method of digital television terminal equipment. According to the method, a terminal startup process and a core storage space are encrypted and decrypted in real time, and terminal equipment runs in an encryption-protected environment completely in combination with safety relevant operation, so that information transmission safety is guaranteed; and meanwhile, core state and user state applications of the terminal equipment are managed by a microkernel-based operating system, so that the safety and the stability of the system are enhanced fundamentally.