The utility model discloses a well formula inlet outlet structure in water -storage power station, which comprises a body, the body includes upper flow distribution plate and lower influent stream board, influent stream board bottom is connected with the anemostat down, the anemostat bottom is connected with vertical pipe, vertical socle portion is connected with the return bend, return bend bottom right side intercommunication has violently manages, upper flow distribution plate all is equipped with collecting channel with lower influent stream board intermediate position, collecting channel communicates in the anemostat, the influent stream board outside has been seted up and has been straightened the pipe down, it has the diffusion to advance the pipe to straighten tub one side intercommunication, directly advance the intraductal first solenoid valve that is equipped with, upper flow distribution plate has seted up the diffusion exit tube in the outside, diffusion exit tube one side intercommunication has straight exit tube, be equipped with the second solenoid valve on the straight exit tube. The utility model relates to a well formula inlet outlet structure in water -storage power station, novel structure, head loss is less, and rivers are smooth -going moreover, avoid appearing the condition of swirl, have very high practicality.