A touch substrate, comprising: a touch structure layer arranged on a base, wherein the touch structure layer comprises a plurality of first touch electrodes (10, 1) disposed in a first direction (D1, X) and a plurality of second touch electrodes (20, 2) disposed in a second direction (D2, Y); the first direction (D1, X) and the second direction (D2, Y) intersect; the touch structure layer comprises a metal mesh; the metal mesh comprises a plurality of mesh patterns; the plurality of mesh patterns are polygon composed of a plurality of metal lines; the plurality of mesh patterns are provided with a plurality of first notches and a plurality of second notches; the plurality of first notches are located at boundary positions of the first touch electrodes (10, 1) and the second touch electrodes (20, 2); the plurality of second notches are located at other positions except for the boundary positions; each of the plurality of first notches is configured to enable a corresponding metal line to form first broken lines (31, 211), and each of the plurality of second notches is configured to enable a corresponding metal line to form second broken lines (41, 221); and characterized in that, in the plurality of mesh patterns, the first broken lines (31, 211) and the metal lines adjacent to the first broken lines (31, 211) form a first broken line unit, and the second broken lines (41, 221) and the metal lines adjacent to the second broken lines (41, 221) form a second broken line unit; and a form of the first broken line unit comprises one or more end surface shapes of the first broken lines (31, 211), and a form of the second broken line unit comprises one or more end surface shapes of the second broken lines (41, 221); and the one or more end surface shapes of the first broken lines (31, 211) are different from the one or more end surface shapes of the second broken lines (41, 221). a touch structure layer arranged on a base, wherein the touch structure layer comprises a plurality of first touch electrodes (10, 1) disposed in a first direction (D1, X) and a plurality of second touch electrodes (20, 2) disposed in a second direction (D2, Y); the first direction (D1, X) and the second direction (D2, Y) intersect; the touch structure layer comprises a metal mesh; the metal mesh comprises a plurality of mesh patterns; the plurality of mesh patterns are polygon composed of a plurality of metal lines; the plurality of mesh patterns are provided with a plurality of first notches and a plurality of second notches; the plurality of first notches are located at boundary positions of the first touch electrodes (10, 1) and the second touch electrodes (20, 2); the plurality of second notches are located at other positions except for the boundary positions; each of the plurality of first notches is configured to enable a corresponding metal line to form first broken lines (31, 211), and each of the plurality of second notches is configured to enable a corresponding metal line to form second broken lines (41, 221); and characterized in that, in the plurality of mesh patterns, the first broken lines (31, 211) and the metal lines adjacent to the first broken lines (31, 211) form a first broken line unit, and the second broken lines (41, 221) and the metal lines adjacent to the second broken lines (41, 221) form a second broken line unit; and a form of the first broken line unit comprises one or more end surface shapes of the first broken lines (31, 211), and a form of the second broken line unit comprises one or more end surface shapes of the second broken lines (41, 221); and the one or more end surface shapes of the first broken lines (31, 211) are different from the one or more end surface shapes of the second broken lines (41, 221).