The invention provides a liquid crystal lens and a display device and belongs to the technical field of display. With the liquid crystal lens and the display device of the invention adopted, the problem of the poor light focusing or divergence capability of an existing liquid crystal lens caused by small lateral electric fields generated by the electrode edges of a plurality of electrodes in the existing liquid crystal lens can be solved. The liquid crystal lens of the invention comprises a first substrate, a second substrate and a liquid crystal layer, wherein the first substrate and the second substrate are oppositely arranged, and the liquid crystal layer is located between the first substrate and the second substrate; the first substrate comprises a first base and a first electrode layer located on the first base; the second substrate comprises a second base and a second electrode layer located on the second base; the first electrode layer comprises a plurality of first electrodesarranged at intervals; the orthographic projection of the second electrode layer on the first base covers the orthographic projection of the first electrodes on the first base; and the projection of at least one side surface of each first electrode on the first base in a length direction falls on the first base.