The invention discloses an operation and maintenance overhauling ship for aloft work of a fishing light complementation type power station. The operation and maintenance overhauling ship for aloft work of the fishing light complementation type power station comprises a ship body, a lifting system installed on the ship body, and an operation platform fixed to the top of the lifting system. The bottom end of the lifting system is installed on a bottom plate of the ship body. A ship body stabilizing device is arranged in a cabin. Ship body balancing devices are arranged on side plates of the ship body. A ship position fixing device is arranged on the ship bow. According to the operation and maintenance overhauling ship provided by the invention, balance weight bins are arranged on the ship bow and the ship stem, so that the stability of the ship body is improved; balance floats are symmetrically installed on the two sides of the ship body, so that the balance of the ship body is improved; and the position fixing device is arranged on the ship bow, so that direction deflection of the ship bow is limited, and the effect of fixing the position of the ship body is further achieved. According to the operation and maintenance overhauling ship for aloft work of the fishing light complementation type power station, on the one hand, the operating stability and balance of the ship body are improved, and on the other hand, deflection is avoided during aloft work by an operator, and the personal safety of the operator is guaranteed; and the operation and maintenance difficulty of the fishing light complementation type power station is lowered, and the working efficiency is improved.