Formaldehyde concentrations in the air of anatomy practicing room located in the medical department of four universities, respectively were measured in the anatomy training periods. As a result of the measurements, formaldehyde concentrations in all anatomy practing rooms air decreased with the lapse of the anatomy training periods. Through the body anatomy treatment process were different in each university, the maximum formaldehyde concentrations were 0.45〜1.5ppm. In the end of practical training periods, the concentrations decreased to 0.12〜0.24ppm. The formaldehyde concentrations near the body also showed the decrease, and this tendency was equal to the changes of formaldehyde concentrations in the anatomy practcing room air. The maximum formaldehyde concentrations from the bodies were 2.2〜2.5ppm. From the supply air quanitities and the maximum formaldehyde concentrations in each anatomy practing room air, the maximum formaldehyde concentrations generated from the bodies were tried to calculate. As the result, the maximum generation rate of hormaldehyde from the body was 3.7×10^2〜1.3×10^3mg/hr per one body.