The utility model discloses a crack drilling construction structures is made in mound drilled pile manual work of hard rock aquatic, creep into the fashioned holes of drawing from top to bottom including a plurality of on hard rock is located to the drilled pile, the drilled pile is vertically to laying, draws the hole and is that vertical its quantity is 8~10 to laying just, it is downthehole that a plurality of kong jun of drawing lie in the design stake of drilled pile, a plurality of structures of drawing the hole and size homogeneous phase with, a plurality of holes of drawing include that a plurality of lateral openings of evenly laying along the circumferencial direction and one lie in a plurality ofly the mesopore at lateral opening inboard middle part, the mesopore is located thethe central axis of drilled pile. The utility model discloses a from top to bottom bore on hard rock is located to the drilled pile and get a plurality of holes of drawing to inject quantity of drawing the hole and the layout position who respectively draws the hole, make the hard rock that the drilled pile is located form the sieve hole in order to increase the rock fracture face, can effectivelysolve the problem that influences drilled pile drilling construction progress because of the rock is hard, complete.