Building materials are composed of very complex chemical compounds. The aims of this paper are to investigate the emission concentrations of indoor pollutants from new apartment house and the emission variation patterns during 75 days. The average value of total volatile organic compounds (TVOCs) concentration was 3,768 ㎍/㎥ in five new apartments. Major VOCs included toluene, ethylbenzene, m,p-xylene and o-xylene. The average concentrations of each compound were measured as: benzene (58㎍/㎥), toluene (793㎍/㎥), ethylbenzene (438㎍/㎥), styrene (79㎍/㎥), m,p-xylene (1,210㎍/㎥), o-xylene (364㎍/㎥). The results indicated that the major VOCs from the new apartment were affected by building products such as on aromatic hydrocarbon compounds. TVOCs emission are characterised as high emission level at initial time (12,856 ㎍/㎥) and decreased through time. After a lapse of 75 days in sample house, TVOCs concentration decreased in about 20 times as compared with initial concentration. The TVOCs emission profiles strongly depended on the generation mode and the concentration of the VOCs in building material. Keywords：Building materials, TVOCs(Total Volatile Organic Compounds), Emission concentration