The invention discloses a visual teaching display system, which includes a projector, a projection screen, a computer, a teaching pen, a camera, an ultrasonic receiver, and a computing chip. The computer receives the light point image or the position coordinate information of the teaching pen, And process the light point image to obtain the light point coordinate information; call the built-in drawing function according to the light point coordinate information or the teaching pen position coordinate information, generate the corresponding light point coordinate image or the teaching pen position coordinate image, and convert the light point coordinate The image or the position coordinate image of the teaching pen is output to the projector. The invention realizes the fusion of the multimedia teaching mode and the traditional blackboard teaching mode, and the teaching teacher can switch as desired and on demand, effectively improving the classroom efficiency. The invention adopts solar charging mode to supply energy to the core component teaching pen, and realizes long-time battery life of environmental protection. The investment cost of the invention is not high, it is suitable for all kinds of teaching institutions in the country, and has a very good application prospect.