To provide an automatic monitoring alarm system, which tracks movement of an intruding object by a monitoring camera, giving a warning to the intruding object, and shooting a bullet such as a marking ball to the intruding object automatically or based on shooting instructions.

In the system, a monitored place is connected with a monitoring center by a communication line 70, and the monitored place is provided with a sensor 10 sensing an intruding object, a monitoring means 20 provided in compliance with the sensor 10, an image transmitting means 30 for transmitting an image signal obtained from the monitoring means 20 to the monitoring center, and a control means 40 for controlling the monitoring means 20 and the image transmitting means 30. The system comprises a turning device 50 for turning the sensor 10 toward the intruding object, when it senses the intruding object, to track it, and a bullet shooting device 60 provided in compliance with the monitoring means 20. The bullet shooting sight of the shooting device 60 automatically aims at the intruding object, and after giving the warning to the intruding object, the bullet is shot to the intruding object automatically or based on shooting instruction.

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