To provide a spherical grinding device for a lens capable of achieving rough grinding using a cup grinding wheel and fine grinding using a pellet pan on the same machine bed without re-gripping a work.

This spherical grinding device for lens includes: a work shaft 1 provided with a work holder 12 at the tip; a grinding wheel shaft 25, the tool fitting end of which is opposite to the work holder; and a rocking table 23 for tilting the grinding wheel shaft wherein the work shaft 1 and the grinding wheel shaft 25 are rotated with the grinding wheel shaft 25 inclined. The spherical grinding device further includes: a Z-axis servo motor 17 for axially moving the work shaft; a control device 19 for the output torque of the Z-axis servo motor; a B-axis servo motor 37 for rocking the rocking table 23; an X-axis servo motor 27 driven X-carriage 22 reciprocated to move in the direction intersecting the work shaft 1; and a plurality of grinding wheel shafts 25a, 25b mounted to the rocking table or the X-carriage.