Nowadays, there are much more social interests on the eco-friendly architectural materials which is not harmful to human and can give some help to maintain good health to the resident in those housing, instead of the harmful containing chemical hazard materials, in trend of increasing interest on the human health and residential environment. There have been reported that a kind of some architectural finishing material that has been used for the interior housing as commonly, emits volatile pollutants which is seriously harmful to human body such as formaldehyde, Volatile Organic Compounds(VOCs). In this reason, there are many studies on the development of eco-friendly material based on the Korean traditional technology and material, such as Korean charcoal through the scientific analyses in architectural engineering. In this study, we reviewed the applicability of three types of Korean charcoal (black charcoal, white charcoal, activated charcoal) into interior housing material through the experiment of insulation capacity of those, which have not been considered before.