To provide a television imaging system which can securely acquire accurate image data corresponding to a monitored object in movement imaging.

The television imaging system which picks up an image of a track 13 extending to before a vehicle 1 by a television camera 1 mounted on the vehicle 11 traveling along the track 13 and monitors the track 11 and its circumference according to the image is characterized in that when imaging operation conditions of the television camera 1 are controlled according to the position of the vehicle 11 on the track 13 during its travel, change of a light measurement area is included in the imaging operation conditions.