A touch display device including sensing electrodes arranged on a single layer of a touch panel and a touch detection circuit configured to determine whether an object touched the touch panel by a voltage detected by the sensing electrodes. The sensing electrodes include a first group including two first sensing electrodes spaced apart by having a second sensing electrode interposed between the two first sensing electrodes. The first group is connected to the touch detection circuit through one wire. The sensing electrodes also include a second group including one second sensing electrode. The second group is connected to the touch detection circuit through one wire.