A method for alarm identification for a video surveillance system, the method comprising: detecting a front-end alarm; notifying a mobile-phone-signal intercepting unit to collect a mobile phone signal in a monitored area corresponding to the front-end alarm; parsing the mobile phone signal; acquiring a mobile phone number corresponding to the front-end alarm; sending an alarm identification message to the acquired mobile phone number appearing in the monitored area to warn and identify an alarm source; acquiring an alarm identification feedback message returned by the mobile phone number corresponding to the front-end alarm; determining, according to the acquired alarm identification feedback message, whether to eliminate the front-end alarm; and recording the front-end alarm in a historical alarm repository, and recording the mobile phone number corresponding to the front-end alarm to provide a basis for subsequent alarm information statistics and sorting, wherein the determining, according to the acquired alarm identification feedback message, whether to eliminate the front-end alarm comprises: when no alarm identification feedback message corresponding to the alarm identification message is acquired within a preset waiting time, determining, according to a preset first alarm eliminating strategy, whether to eliminate the front-end alarm; labeling the front-end alarm as an identity-unidentified alarm; and recording the labeled front-end alarm in the historical alarm repository; and when the alarm identification feedback message corresponding to the alarm identification message is acquired within the preset waiting time, determining, according to a preset second alarm eliminating strategy, whether to eliminate the front-end alarm; and recording the front-end alarm and the mobile phone number corresponding to the front-end alarm in the historical alarm repository. detecting a front-end alarm; notifying a mobile-phone-signal intercepting unit to collect a mobile phone signal in a monitored area corresponding to the front-end alarm; parsing the mobile phone signal; acquiring a mobile phone number corresponding to the front-end alarm; sending an alarm identification message to the acquired mobile phone number appearing in the monitored area to warn and identify an alarm source; acquiring an alarm identification feedback message returned by the mobile phone number corresponding to the front-end alarm; determining, according to the acquired alarm identification feedback message, whether to eliminate the front-end alarm; and recording the front-end alarm in a historical alarm repository, and recording the mobile phone number corresponding to the front-end alarm to provide a basis for subsequent alarm information statistics and sorting, wherein the determining, according to the acquired alarm identification feedback message, whether to eliminate the front-end alarm comprises: when no alarm identification feedback message corresponding to the alarm identification message is acquired within a preset waiting time, determining, according to a preset first alarm eliminating strategy, whether to eliminate the front-end alarm; labeling the front-end alarm as an identity-unidentified alarm; and recording the labeled front-end alarm in the historical alarm repository; and when the alarm identification feedback message corresponding to the alarm identification message is acquired within the preset waiting time, determining, according to a preset second alarm eliminating strategy, whether to eliminate the front-end alarm; and recording the front-end alarm and the mobile phone number corresponding to the front-end alarm in the historical alarm repository. when no alarm identification feedback message corresponding to the alarm identification message is acquired within a preset waiting time, determining, according to a preset first alarm eliminating strategy, whether to eliminate the front-end alarm; labeling the front-end alarm as an identity-unidentified alarm; and recording the labeled front-end alarm in the historical alarm repository; and when the alarm identification feedback message corresponding to the alarm identification message is acquired within the preset waiting time, determining, according to a preset second alarm eliminating strategy, whether to eliminate the front-end alarm; and recording the front-end alarm and the mobile phone number corresponding to the front-end alarm in the historical alarm repository.