The present application discloses a touch substrate including a base substrate; a black matrix layer on the base substrate in a black matrix area of the touch substrate; and a touch electrode layer on a side of the black matrix layer distal to the base substrate in a touch electrode area of the touch substrate. The touch electrode area partially overlaps with the black matrix area thereby forming an overlapping area. The touch electrode layer includes a plurality of touch electrode blocks at least partially in the overlapping area. A touch electrode block at least partially in the overlapping area is spaced apart from adjacent touch electrode blocks by a first gap. The black matrix layer in at least a portion of a region on a side of the first gap proximal to the base substrate has a reduced thickness relative to a thickness of a remaining portion of the black matrix layer.