Disclosed are an emergency call-for-help method and system based on fingerprint identification for a mobile terminal, and a mobile terminal. When a user is in an emergency, a mobile terminal sends an emergency short message including positional information to emergency contacts, and automatically calls the numbers of all the emergency contacts, so as to rapidly send a call-for-help signal to the outside world, thereby guaranteeing the user's safety, reducing safety risks and being convenient for the user.