To provide a trolling vessel maneuvering system capable of controlling to an optimal vessel speed according to hitting of fish even by one who is inexperienced in maneuvering.SOLUTION: A winding device 351 includes a hit detection unit 352 notifying hit state to a steering control device 200 by detecting hitting state of fish being caught in a fishing tackle of a fishing line, the steering control device 200 includes a maneuvering unit in trolling 301, the maneuvering unit in trolling 301 controls vessel speed to a first vessel speed by rotating a propeller 101 in the forward direction at a constant number of rotation and carries out speed reduction control to a second vessel speed suitable for winding up of the fishing line by turning thrust force of propeller back wash to bow direction by combining steering angles of high lift rudders 102, 103 at both gunwale sides in a state the propeller 101 rotating in the forward direction at a constant rotational speed on receiving notice of the hitting state from the hit detection unit 352.SELECTED DRAWING: Figure 2【課題】操船に不慣れな者でも魚のヒットに合わせて迅速にかつ最適な船速に制御することができるトローリング船操船システムを提供する。【解決手段】巻き上げ装置３５１は、釣り糸の仕掛けに魚がかかったヒット状態を検知して、ヒット状態を操舵制御装置２００に通知するヒット検知部３５２を有し、操舵制御装置２００は、トローリング時操船部３０１を有し、トローリング時操船部３０１は、プロペラ１０１を前進方向に一定回転数で回転させて船速を第１船速に制御し、ヒット検知部３５２からヒット状態の通知を受けて、プロペラ１０１が前進方向に一定回転数で回転する状態で、両舷の高揚力舵１０２、１０３の舵角を組合せて、プロペラ後流の推力を船首方向に転向させて、釣り糸の巻き上げに適した第２船速に減速制御する。【選択図】図２
