A sensing electrode group formed on a substrate of a touch apparatus includes a plurality of sensing electrode unit pairs arranged along a first direction. Each sensing electrode unit pair includes a first sensing electrode unit and a second sensing electrode unit corresponding to the first sensing electrode unit. The first sensing electrode unit includes at least one first electrode, at least one corresponding second electrode, a first conducting wire and a second conducting wire. The second sensing electrode unit includes at least one third electrode, at least one corresponding fourth electrode, a third conducting wire and a fourth conducting wire. The first and second sensing electrode units are arranged along a second direction, and the third and fourth conducting wires are routed along the second direction next to the first sensing electrode unit.