Touch substrate, touch panel and touch display device

A touch substrate having a touch region and a peripheral region located on at least one side of the touch region;

• wherein
• the touch substrate comprises a first layer wiring group and a second layer wiring group that are located in the peripheral region;
• the first layer wiring group includes a plurality of first wirings, the second layer wiring group includes a plurality of second wirings, and a square resistance of a first wiring is greater than a square resistance of a second wiring;
• wherein
• the peripheral region includes a first wiring region and a second wiring region, and at least a portion of the first wiring region is farther from the touch region than the second wiring region;
• the first wiring region is provided with at least one first-type touch lead therein, each first-type touch lead includes a first wiring in the plurality of first wirings and a second wiring in the plurality of second wirings that are connected to each other, and orthographic projections of the first wiring and the second wiring of the first-type touch lead on the touch substrate are overlapped;
• the second wiring region is provided with at least one second-type touch lead therein, and each second-type touch lead includes a second wiring in the plurality of second wirings or a first wiring in the plurality of first wirings;
• and a length of the first-type touch lead is greater than a length of the second-type touch lead.