Monitoring video display method and monitoring video display device

The invention discloses a monitoring video display method and a monitoring video display device. A moving object in a monitoring video is monitored automatically, and reliability is high. The monitoring video display method is characterized in that the moving direction and the moving speed of the moving object in the monitoring video are determined; the potential moving area of the above mentioned object is determined according to the moving object display area in a current display window, the moving direction of the moving object, and the moving speed of the moving object; the potential moving area of the moving object is displayed in a magnified manner.