Abstract: A touch display device includes a display module, a touch module and a light-transmitting substrate. The display module has a display surface and a bottom surface opposite to the display surface. The touch module is fixed to the display surface by an adhesive. The adhesive, the touch module and the display surface together form an accommodating space between the display module and the touch module. The light-transmitting substrate is disposed in the accommodating space, one side of the light-transmitting substrate is fixed to the display surface by a first optical adhesive, the other side of the light-transmitting substrate is fixed to the touch module by a second optical adhesive. An adhesive strength of the adhesive is greater than an adhesive strength of the first optical adhesive, and the adhesive strength of the adhesive is greater than an adhesive strength of the second optical adhesive.