Offshore wind power structure deformation monitoring system and method

The invention provides an offshore wind power structure deformation monitoring system and method. The system comprises a plurality of uniformly distributed first positioning devices located on an overwater wind power platform, a second positioning device located on an overwater fan cylinder, an underwater pile foundation information acquisition device, a base station erected beside a coast and a far-end server. Wherein the underwater pile foundation information acquisition device is used for acquiring image information of an underwater pile foundation and current position information of the underwater pile foundation; the far-end server is used for receiving the three-dimensional position information of the first positioning device, the second positioning device and the base station so as to judge whether the offshore wind power structural body settles and inclines or not, and receiving the position information of the underwater pile foundation information acquisition device and the image of the underwater pi