A liquid discharge head obtained by a manufacturing method, comprising: forming an actuator base including a plurality of first grooves spaced from each other in a first direction, the plurality of first grooves forming pressure chambers, each of the first grooves extending in a second direction, the actuator base being a piezoelectric ceramic material, the actuator base further including two principal surfaces (10a, 10b); forming a case member including a frame portion of a ceramic material having aluminum titanate as a main component, the frame portion being spaced from the actuator base in the second direction, the frame portion including a pair of plate-like first frame pieces joined to the end surface of the actuator base in the first direction, and a pair of plate-like second frame pieces arranged apart from each other by a predetermined distance on both of the two principal surfaces (10a, 10b); wherein the liquid discharge head is obtained by further including the manufacturing step of simultaneously grinding an end surface of the frame portion in a third direction that is orthogonal to the first and second directions and an end surface of the actuator base in the third direction so the end surface of the frame portion is level with the end surface of the actuator base; and coupling a nozzle plate to the end surface of the frame portion and the end surface of the actuator base; wherein a common chamber that communicates with the plurality of first grooves is between the frame portion and the actuator base; the actuator base further includes a plurality of second grooves between first grooves in the first direction, each of the second grooves extending in the second direction, but closed off from the common chamber by a cover plate on the actuator base; and the cover plate being coupled to a side surface of the actuator base, the cover plate having a plurality of recesses corresponding in position with the plurality of first grooves. forming an actuator base including a plurality of first grooves spaced from each other in a first direction, the plurality of first grooves forming pressure chambers, each of the first grooves extending in a second direction, the actuator base being a piezoelectric ceramic material, the actuator base further including two principal surfaces (10a, 10b); forming a case member including a frame portion of a ceramic material having aluminum titanate as a main component, the frame portion being spaced from the actuator base in the second direction, the frame portion including a pair of plate-like first frame pieces joined to the end surface of the actuator base in the first direction, and a pair of plate-like second frame pieces arranged apart from each other by a predetermined distance on both of the two principal surfaces (10a, 10b); wherein the liquid discharge head is obtained by further including the manufacturing step of simultaneously grinding an end surface of the frame portion in a third direction that is orthogonal to the first and second directions and an end surface of the actuator base in the third direction so the end surface of the frame portion is level with the end surface of the actuator base; and coupling a nozzle plate to the end surface of the frame portion and the end surface of the actuator base; wherein a common chamber that communicates with the plurality of first grooves is between the frame portion and the actuator base; the actuator base further includes a plurality of second grooves between first grooves in the first direction, each of the second grooves extending in the second direction, but closed off from the common chamber by a cover plate on the actuator base; and the cover plate being coupled to a side surface of the actuator base, the cover plate having a plurality of recesses corresponding in position with the plurality of first grooves.