The invention discloses a collector and a collector set for a packed tower. The collector comprises reverse-shading ring sheet sets in a layered structure, wherein each layer of reverse-shading ring sheet is in a hollow inverted cone table shape, outer edges of the reverse-shading ring sheet sets decrease from top to bottom in a layer-by-layer manner, projections of the reverse-shading ring sheet sets at adjacent layers are overlapped with one another from top to bottom, the two layers of adjacent reverse-shading ring sheet sets are fixedly connected with each other by virtue of connecting plates, annular shading caps are arranged above the annular top of the reverse-shading ring sheet at the uppermost layer at intervals, are used for shading and are welded with a tower wall, a liquid collection bucket is arranged on a hollow hole in the reverse-shading ring sheet at the bottommost layer in a communication manner, and the cone angle of each layer of reverse-shading ring sheet is 120-180 degrees. The collector is easy to manufacture and convenient to mount and can realize 360-degree complete coverage, complete liquid collection and adequate mixing.