Disclosed herein is a drill for dental surgery capable of rapidly and safely sublating a membrane in a maxillary sinus without damaging a membrane in a maxillary sinus at the time of operating the maxillary sinus. An exemplary embodiment of the present invention provides a drill for dental surgery including a connection part formed on a top end of a body so as to be connected with a driving device and a cutting part formed on a bottom end of the body and having cutting blades for drilling, wherein the cutting part includes a plurality of cutting blades arranged in a circular shape so as to have a hollow cylindrical shape, thereby picking a bond disk and an end of the cutting blade is formed with a rounded end curved surface to prevent a membrane from being damaged even when an end outer peripheral edge of the cutting pat directly touches the membrane at the time of a drilling work.
