A method of detecting whether a surveillance camera is abnormal or abnormal includes: obtaining a plurality of video frames from a video captured by the surveillance camera; sequentially comparing each of the plurality of video frames with a reference video frame; determining that the surveillance camera is abnormal when a sequence of video frame detection results indicates that not all of the plurality of video frames are normal video frames; issuing a maintenance notification of the surveillance camera when it is determined that the surveillance camera is abnormal with the particular one of the plurality of abnormal properties, thereby facilitating a maintenance procedure to be performed on the surveillance camera to remove the particular one of the plurality of abnormal properties.