To provide a monitoring system capable of shortening the operation time of a monitoring camera and enhancing the operability.

In the monitoring system, there are provided an infiltration sensor, an alarm indication means, a monitoring camera, and a monitor for indicating a photographed image of this monitoring camera, a system control device for outputting an alarm indication or an alarm sound by the alarm indication means, in the case where infiltration is detected by the infiltration sensor and capturing an image of an object by operating a direction of the monitoring camera, based on related information; and an operation means for carrying out an operation of the monitoring camera via this system control device.