Automatic fish passing device of ship lift

The invention provides an automatic fish passing device of a ship lift. The automatic fish passing device comprises a ship lift chamber body, wherein a first water pipe with holes and a second water pipe with holes are correspondingly arranged on two sides of the ship lift chamber body; supporting columns are correspondingly arranged at two ends of the first water pipe with holes and the second water pipe with holes; and an upstream tumble gate and a downstream tumble gate are correspondingly arranged at two ends of the ship lift chamber body. The automatic fish passing device provided by theinvention has the advantages that by utilization of a constructed ship lift building and through the additional arrangement of an additional structure, the fish passing function of the ship lift is achieved; meanwhile, by utilization of the program control combined with a control system of the ship lift, the automatic fish passing function is achieved; under the premise that the cost is relativelylow, the newly-added fish