Attitude measurement system for marine sunken ship

The utility model provides an attitude measurement system for a marine sunken ship. The attitude measurement system comprises a control main machine, a sonar transmitter, a sonar receiving device, an underwater optical transceiver, optical fibers, an overwater optical transceiver, an installation rod and an installation rod driving motor, wherein the sonar transmitter is connected with the control main machine; the sonar receiving device, the underwater optical transceiver, the optical fibers, the overwater optical transceiver and the control main machine are sequentially connected; the sonar transmitter is mounted on the installation rod; and the installation rod driving motor is connected with the control main machine. The attitude measurement system has good underwater environment applicability, is less influenced by factors such as water depths, visibility, impurities in water, underwater illumination and the like, can be widely applied to most of underwater environments, provides visual picture and image