An alarm method for a terminal, comprising: receiving a pressing operation by a finger corresponding to a first fingerprint at a touch position for recognizing the first fingerprint, the first fingerprint matching with a fingerprint previously stored locally in the terminal; and triggering an alarm function of the terminal when the pressing duration time of the pressing operation reaches a predetermined time period, and/or the number of pressing times of the pressing operation reaches a predetermined number of times, characterized in that triggering an alarm function of the terminal when the pressing duration time of the pressing operation reaches a predetermined time period, and/or the number of pressing times of the pressing operation reaches a predetermined number of times, comprises when the pressing duration time reaches the predetermined time period, depending on the value of the pressing duration time, triggering an alarm function corresponding to the pressing duration time; and in that depending on the value of the pressing duration time, triggering an alarm function corresponding to the pressing duration time, comprises: when the pressing duration time is within a range of a first time period, triggering the terminal to send a current position message and an emergency SOS message to a preset first designated receiving party, and triggering a voice recording function of the terminal; when the pressing duration time is within a range of a second time period, further triggering the terminal to start a camera, and send video information captured by the camera to the designated receiving party; and when the pressing duration time is within a range of a third time period, further triggering the terminal to send current position messages and emergency SOS messages to a plurality of preset designated receiving parties. receiving a pressing operation by a finger corresponding to a first fingerprint at a touch position for recognizing the first fingerprint, the first fingerprint matching with a fingerprint previously stored locally in the terminal; and triggering an alarm function of the terminal when the pressing duration time of the pressing operation reaches a predetermined time period, and/or the number of pressing times of the pressing operation reaches a predetermined number of times, characterized in that triggering an alarm function of the terminal when the pressing duration time of the pressing operation reaches a predetermined time period, and/or the number of pressing times of the pressing operation reaches a predetermined number of times, comprises when the pressing duration time reaches the predetermined time period, depending on the value of the pressing duration time, triggering an alarm function corresponding to the pressing duration time; when the pressing duration time is within a range of a first time period, triggering the terminal to send a current position message and an emergency SOS message to a preset first designated receiving party, and triggering a voice recording function of the terminal; when the pressing duration time is within a range of a second time period, further triggering the terminal to start a camera, and send video information captured by the camera to the designated receiving party; and when the pressing duration time is within a range of a third time period, further triggering the terminal to send current position messages and emergency SOS messages to a plurality of preset designated receiving parties.