Taxidermied specimen is the art of preparing, stuffing, and mounting the skins of animals (all vertebrate species of animals including mammals, birds, reptiles, and fishes) for display or for other sources of study. But, as these studies are weighted toward ecologic study, related studies on management and conservation environment are short. Also, the analysis of poisonous gas has not yet been studied. Therefore, this study will be suggested proper preservation methods through the analysis of deterioration on taxidermied specimen by poisonous gas. As a result, 4 types of major chemicals were detected in UV deterioration test, 7 types in RH and formaldehyde deterioration test. As a result of SPME, Naphthalene to be used as antiseptic were detected in all of the test conditions. Acetic acid that is VOCs were detected for factor. Moreover as the higher humidity it was, the concentration of chemicals were decreased.