A touch substrate and a display device are provided. The touch substrate includes: a substrate having a surface including a touch region and a fingerprint recognition region, the touch region and the fingerprint recognition region not overlapping with each other; and a plurality of touch units in the touch region and the fingerprint recognition region, respectively. Each of the touch units in the touch region includes a touch structure. Each of the touch units in the fingerprint recognition region includes a plurality of fingerprint recognition units. Each of the plurality of fingerprint recognition units includes a fingerprint recognition structure, and in a touch mode, each fingerprint recognition structure is multiplexed as a touch structure of each touch unit in the fingerprint recognition region.