The invention discloses a rapid protection switching system based on a safe channel, which relates to the technical field of an optical network and comprises a message configuration module, an index acquisition module, a message assembling module, a message transmitting module, a message verification module and a switching execution module. According to the invention, the method is free of the process of using the CPU to inspect in turn the FPGAs to obtain OAM warning, which reduces the weight on the CPU and saves the time consumed to the protection switching. Through the full of the hardware resources of the FPGAs and the ASIC chip, when there is a batch of protection entries in need of switching, a great amount of switching time can be saved, therefore, increasing the switching efficiency. The method also discloses a rapid protection switching method based on the safe channel.