The present invention relates to an apparatus for optical surgery and to the method for controlling same, and provides the apparatus for optical surgery and a method for controlling same, comprising: a cutting open-energy source for generating the cutting open-energy for cutting open a surgery area; a hemostasis energy source for generating energy for hemostasis, which is formed separately from the cutting open-energy source, for stopping bleeding at the cut open surgery area; a hand piece, which is connected to the cutting open-energy source and the hemostasis energy source, for providing the cutting open-energy and the hemostasis energy to the surgery area; and a control part for controlling the cutting open-energy and the hemostasis energy, which are provided through the hand piece.