The utility model relates to a stress wave and optical-fiber sensing multiple pipeline safety early warning system. The output of an optical-fiber sensor outside a lower pipeline (28) which is installed and embedded under the ground surface (21) and a fixing device (27) is connected with input of a vibration signal collecting and processing device (25) through a signal line (26), the output of the vibration signal collecting and processing device (25) is connected with the input of an outside clamp type optical cable vibration device (23) which is clamped on a pipeline co-channel optical cable (22) through a signal line (24), a measured vibration signal is sent into the vibration signal collecting and processing device (25) through a signal line (26) by the optical-fiber sensor, processed signals are transmitted to the input of the outside clamp type optical cable vibration device (23) by the signal line (24), the outside clamp type optical cable vibration device (23) acts the vibration signals on the optical-fiber sensing multiple pipeline safety early warning system, and the signals are positioned and send alarm information through the optical-fiber sensing pipeline safety early warning system.