Constant temperature agitating device and agitating method using the same

A constant temperature agitating device for agitating substances received in a container comprises a base, a container receiving body part and a shaking motion part. The container receiving body part is positioned at an upper part of the base, and includes upper and lower body parts for covering the upper and lower parts of the container so as to receive the container, wherein the inner surfaces of the upper and lower body parts which contact with the container form a container receiving part corresponding to the outer surface of the container. The shaking motion part shakes the container receiving body part against the base. The container receives heat via the inner surface contacting with the container receiving part.