The invention discloses a display device for teaching of the major of art design. A display chassis is installed on the upper end of a base through a first electric telescopic rod. The periphery of the display chassis is provided with petals 5 through a rotating shaft having a power device. Each petal is formed by a transparent glass petal shell and a color lamp bead which is installed in the glass pedal shell. The internal side of each petal is provided with a color spot lamp through the rotating shaft having the power device. Formation of a screen is performed through an air screen generation device, and then projection of various characters, images and videos is performed through a projector so that various teaching scenes and backgrounds are formed, and the interest of the teaching process is enhanced; and various display effects can be formed through the lamp beads in the petals, adjustment of the positions of the petals and adjustment of the display chassis and the angle of the display chassis in the use process so that omnibearing displaying of an object can be realized.