Offshore pile driving barge with pile body positioning monitoring function and pile driving positioning monitoring method thereof

The invention relates to an offshore pile driving barge with a pile body positioning monitoring function and a pile driving positioning monitoring method of the offshore pile driving barge. The invention is suitable for the technical field of offshore piling. According to the technical scheme, the pile driving barge comprises a pile driving barge body which is provided with a pile frame used for hoisting a pile body; the GPS positioning module is fixedly mounted on the pile driving barge body; the ship body levelness adjusting module is mounted on a pile driving barge ship body and is provided with a clinometer capable of collecting attitude information of the ship body and an attitude adjusting mechanism capable of adjusting the attitude of the ship body; the pile body perpendicularity monitoring module is mounted on the pile frame and can be used for monitoring the perpendicularity and the angle of the hoisted pile body on the pile frame; and the control module is in communication connection with the GPS po