Requirements on the habitability of accommodation area on the 7th generation ultra-deepwater drillship given by MLC 2006 are studied, and some measures including natural lighting and staffing for sleeping rooms, personnel sanitary facilities, arrangement of mess rooms are analyzed. Requirements on noise control presented by COMF(NOISE) 2 and COMF HEALTH-NOISE-2 class notations are studied, and noise control difficulties are analyzed. Accommodation area of the drillship is designed based on the habitability and noise control considerations finally, and noise control measures of cabins and hospital are specially discussed.