An inkjet printhead comprising a head chip including: a first channel row and a second channel row arranged in parallel and in such a way that the first channel row, the second channel row, and an end of the head chip are disposed in this order on a rear face of the head chip, each of the first and second channel rows including a channel (12A, 12B) and a drive wall (11A, 11B) alternately arranged, wherein the drive wall is composed of a piezoelectric element, and the channel has an opening disposed in each of a front face and the rear face of the head chip; a drive electrode provided on the drive wall facing inside of the channel; a first connection electrode corresponding to the channel of the first channel row and provided on the rear face of the head chip, wherein the first connection electrode extends from the channel of the first channel row, running over the drive wall between the channel and another channel of the second channel row, to the end of the head chip, and the first connection electrode has a shape of a continuous single line; a second connection electrode corresponding to the channel of the second channel row and provided on the rear face of the head chip, wherein the second connection electrode extends from the channel of the second channel row to the end of the head chip; a nozzle from which ink in the channel is discharged by deforming the drive wall when a drive signal is applied to the drive electrode through the first and second connection electrodes (14B, 14A); and an insulating film directly adhering to the rear face of the head chip to be provided between a surface of the drive wall of the second channel row and the first connection electrode running over the drive wall of the second channel row on the rear face of the head chip. a first channel row and a second channel row arranged in parallel and in such a way that the first channel row, the second channel row, and an end of the head chip are disposed in this order on a rear face of the head chip, each of the first and second channel rows including a channel (12A, 12B) and a drive wall (11A, 11B) alternately arranged, wherein the drive wall is composed of a piezoelectric element, and the channel has an opening disposed in each of a front face and the rear face of the head chip; a drive electrode provided on the drive wall facing inside of the channel; a first connection electrode corresponding to the channel of the first channel row and provided on the rear face of the head chip, wherein the first connection electrode extends from the channel of the first channel row, running over the drive wall between the channel and another channel of the second channel row, to the end of the head chip, and the first connection electrode has a shape of a continuous single line; a second connection electrode corresponding to the channel of the second channel row and provided on the rear face of the head chip, wherein the second connection electrode extends from the channel of the second channel row to the end of the head chip; a nozzle from which ink in the channel is discharged by deforming the drive wall when a drive signal is applied to the drive electrode through the first and second connection electrodes (14B, 14A); and an insulating film directly adhering to the rear face of the head chip to be provided between a surface of the drive wall of the second channel row and the first connection electrode running over the drive wall of the second channel row on the rear face of the head chip.