The utility model discloses a water conservancy pile foundation handling device, including mobile base, rotating base, support column and hydraulic pump, first defeated oil pipe, the apparatus furthercomprises a rotating shaft, first bracing piece, first chain, a supporting plate, first pneumatic cylinder, hydraulic telescoping rod, the second bracing piece, the second chain, the couple, coilingmotor, two columns installed on the pedestal, fixed pulley and rolling rope, the other end solderless wrapped connection fixed pulley of rolling rope and the tip fixed connection of second bracing piece, mobile base's inner chamber transversely is equipped with the second pneumatic cylinder, it has the sliding plate to peg graft in the inner chamber of mobile base rear end, the one end of slidingplate contacts with the piston rod of second pneumatic cylinder, mobile base's rear end is equipped with locating component. The utility model discloses utilizing hydraulic telescopic device and electronic constriction device to put down first bracing piece and second bracing piece respectively, utilizing two sets of couples to sling the pile foundation to and carry on the mobile base, it enlargesthe loaded area to stretch out and draw back in mobile base's inner chamber through the sliding plate.