The present invention relates to a drillship in which an emergency generator room is arranged in the top deck of a superstructure. According to an embodiment of the present invention, the drillship comprises an emergency generator room where an emergency generator and an emergency generator engine are installed. The ceiling part of the emergency generator room comes in contact with the outside and has a hatch to be opened and closed. Therefore, the present invention improves safety during the maintenance work of equipment in the emergency generator room and reduces material costs by optimizing the arrangement of the emergency generator room and an air conditioning room.
