The present invention discloses a method, a device, and a terminal for implementing incoming call protection. The method includes: determining, according to a frequency for operating a terminal by a user, whether a status of an incoming call protection mode is on or off; if the incoming call protection mode is on, when an incoming call signal arrives, delaying the incoming call signal; and if the incoming call protection mode is off, when an incoming call signal has been delayed and the incoming call signal still continues, releasing the incoming call signal, and when an incoming call signal has been delayed, but the incoming call signal becomes weak or has disappeared, prompting the user that there is a missed call. According to the present invention, a problem of unwittingly connecting or hanging up an incoming call by a user is effectively solved.