The invention discloses an automatic page turning device. The automatic page turning device comprises a triangular bracket, a V-shaped frame, angle adjusting and positioning devices, connecting plates, a book putting plate, a dead point clamping mechanism, a spine clamping mechanism, a page turning device and a control panel, wherein the V-shaped frame is installed on the top end of the triangularbracket, the connecting plates are rotatably connected to both ends of the V-shaped frame by virtue of the angle adjusting and positioning devices, one end, which is far from the V-shaped frame, of the connecting plates is fixedly connected with the book putting plate, the dead point clamping mechanism and the spine clamping mechanism are installed in the book putting plate, and the page turningdevice is installed on the top of the book putting plate. According to the automatic page turning device, the dead point clamping mechanism is arranged, so that the requirements of books of differentsizes can be met, and the condition that pages are not on the plane when a user reads is prevented. The spine clamping mechanism is adjusted, so that the spine can be preferably fixed so as to meet different thickness requirements. The page turning device is arranged, so that manual operation is simulated, both hands are released, and the learning efficiency is improved.