The invention relates to a method for grinding a roll (20) by means of a roll grinding device (10). In said method, a roll (20) is ground by means of a grinding tool (40) of the roll grinding device (10), at least one measurable value of at least one variable that relates to the surface quality of the roll (20) is measured during the grinding operation, and at least one operating parameter of the roll grinding device (10) is adjusted during the grinding operation in accordance with the measured variable. The invention further relates to a roll grinding device (10) for grinding a roll (20), comprising a roll mount (30) that includes two bearings (32, 34) designed to rotatably support the roll (20), also comprising a drive (36) designed to rotatingly drive the roll (20) at an adjustable roll speed, as well as a grinding tool (40) designed to accommodate and rotatingly drive a grinding member (42) at an adjustable grinding member speed and position the grinding member (42) against the roll. The roll grinding device (10) further comprises a measuring apparatus (70) designed to measure measurable values of a variable that relates to the surface quality of the roll (20), as well as a control unit (80) designed to control the roll grinding device and, during the grinding operation, trigger the measuring apparatus (70) to measure at least one measurable value, and adjust at least one operating parameter of the roll grinding device (10) in accordance with the measured variable.