An in-cell touch screen, comprising: an array substrate and an opposite substrate arranged opposite to the array substrate; a common electrode located on a side of the opposite substrate facing the array substrate or a side of the array substrate facing the opposite substrate; a plurality of second touch electrodes; and a plurality of pixel units arranged in a matrix on the array substrate, wherein the common electrode comprises a first strip-shaped electrode and a second strip-shaped electrode, which are arranged alternately in a first direction and spaced apart from each other, and in a touch period, at least one of the first strip-shaped electrode and the second strip-shaped electrode forms a first touch electrode, and an orthographic projection of a gap between the first strip-shaped electrode and the second strip-shaped electrode on the array substrate is located within a gap between the pixel units; wherein each of the second touch electrodes comprises first sub-electrodes and second sub-electrodes, which are sequentially connected with each other in the first direction in an alternate mode and are perpendicular to each other, and each of the second touch electrodes being intersected with the first touch electrode; wherein the first sub-electrodes extend in the first direction, the second sub-electrodes extend in a direction perpendicular to the first direction, and an orthographic projection of each of the second sub-electrodes on the array substrate is located within an orthographic projection of the corresponding first touch electrode on the array substrate; and wherein the first direction is a column direction or a row direction of the pixel units. an array substrate and an opposite substrate arranged opposite to the array substrate; a common electrode located on a side of the opposite substrate facing the array substrate or a side of the array substrate facing the opposite substrate; a plurality of second touch electrodes; and a plurality of pixel units arranged in a matrix on the array substrate, wherein the common electrode comprises a first strip-shaped electrode and a second strip-shaped electrode, which are arranged alternately in a first direction and spaced apart from each other, and in a touch period, at least one of the first strip-shaped electrode and the second strip-shaped electrode forms a first touch electrode, and an orthographic projection of a gap between the first strip-shaped electrode and the second strip-shaped electrode on the array substrate is located within a gap between the pixel units; wherein each of the second touch electrodes comprises first sub-electrodes and second sub-electrodes, which are sequentially connected with each other in the first direction in an alternate mode and are perpendicular to each other, and each of the second touch electrodes being intersected with the first touch electrode; wherein the first sub-electrodes extend in the first direction, the second sub-electrodes extend in a direction perpendicular to the first direction, and an orthographic projection of each of the second sub-electrodes on the array substrate is located within an orthographic projection of the corresponding first touch electrode on the array substrate; and wherein the first direction is a column direction or a row direction of the pixel units.