< Topic >When hauling on the seabed surface, the traction run which is stabilized is possible, at the land it is lightweight and the suffering towing system on the seabed surface which possesses the hydrofoil whose handling is easy is offered.Solutions1 or it provides multiple hydrofoils 3, it looks downward with the water flow which is generated and by traction as power is generated, traveling direction confronting, it installs the angle of hydrofoil 3 in the downward look, in order there is no mole under the seabed surface, it forms the suffering towing system 11 on the seabed surface which possesses the hydrofoil to be able to do the traction which stabilizes on the seabed surface in power connection with the backlash skiing 5 which is installed.< Choice figure >Drawing 1【課題】海底面上を牽引するときは安定した牽引走行ができ、陸上では軽量で取扱いが容易な水中翼を有する海底面上の被牽引装置を提供する。【解決手段】1枚又は複数枚の水中翼3を設け、牽引によって発生する水流で下向き力が発生するように水中翼3の角度を進行方向対して下向きに設置し、海底面下にもぐらないように設置したガタスキー5との力関係で海底面上を安定した牽引ができるようにして水中翼を有する海底面上の被牽引装置11を形成する。【選択図】図1