An infrared touch display device is provided to include a display panel, an optical adhesive layer, a cover plate and an infrared touch panel that are overlapped in an order from bottom to top, and a microstructure layer. The optical adhesive layer is shaped as a ring and disposed in a peripheral area of an upper surface of the display panel. The area encompassed by the optical adhesive layer forms a vacuum room. The cover plate is disposed on the optical adhesive layer. The infrared touch panel is disposed on the cover plate. The microstructure layer is disposed at a side of the cover plate and has an anti-glare function.