It is an object of the present invention to provide an agitating device which can be shaken to agitate, whip, froth and disperse the liquid material content.

There is provided a device for mixing liquid material comprising: a container containing liquid material; an opening-closing member formed on the top of said container; and a coil spring accommodated in said container and having an end fixed on the upper part of said container so as to be vibrable and oscillable. The coil spring has a smaller coil pitch in its lowest part than that in its upper part.