The invention provides a touch display device and relates to the technical field of display. The touch display device can distinguish pressure intensity so as to achieve pressure touch. The touch display device comprises a backlight module. The backlight module comprises a lateral entering type lamp bar. The lamp bar comprises a circuit board and a light source arranged below the circuit board. The display device further comprises a first electrode, a dielectric layer and a second electrode which are arranged above the circuit board in sequence. The dielectric layer is made of elastic materials. The position of the first electrode corresponds to that of the second electrode. Both the first electrode and the second electrode are connected with a measuring circuit of the display device. The measuring circuit is used for measuring the capacitance value between the first electrode and the second electrode. The touch display device is easy to manufacture.