The invention discloses a dome camera preset position correction method and a correction device, which can be used to optimize the operation system of the dome camera. The correction method is characterized in that when offset of a preset position occurs during real-time monitoring of a target object, an offset image can be acquired and stored, and then the offset characteristic data of the offset image can be extracted; the above mentioned offset characteristic data can be compared with the original characteristic data of the original data of the pre-stored corresponding preset position, and the preset position can be corrected according to the acquired comparison result. When the preset position is offset, the preset position can be corrected effectively, and therefore the correctness and the validity of the monitoring of the dome camera can be guaranteed, and the manual maintenance of the dome camera can be reduced.