According to one embodiment, a touch detection device includes first detection electrodes in a detection area, second detection electrodes in the detection area, extending to intersect the first detection electrodes, first control lines connected to the first detection electrodes, respectively, and provided in a non-detection area, and second control lines connected to the second detection electrodes, respectively, and provided in the non-detection area. The second control lines overlap the first control lines at a plurality of positions as seen in plan view, such that areas of overlapping portions in which the first control lines overlap the second control lines are substantially equalized.