A safety information management method, a safety information management device, and a terminal are provided. The method includes: detecting whether a terminal satisfies a protection condition for safety information at current time (S101); if yes, protecting the safety information (S102). The method addresses a problem of the prior art that the safety information cannot be actively protected if a user forgets to activate a protection mechanism for the safety information. In this method, when the terminal is in a state in which the safety information can be successfully viewed, the terminal actively protects the safety information as long as the terminal satisfies the protection condition for the safety information, which provides further safety protection for the safety information in the terminal.