To provide a liquid jet apparatus which can attain high-density formation and miniaturization at the same time and is also good in productivity in the liquid jet apparatus with a harmonica type head chip.

In the liquid jet apparatus 1 with a harmonica type head chip, a first drawing electrode 24 electrically connected with a driving electrode 23 in a channel 22 is formed on a rear surface 2b of the head chip 2, and one end of an FPC 7 is electrically connected directly or indirectly to the first drawing electrode 24. The FPC 7 extends rearward of the head chip 2 along a surface of an electrode lead-out member projected rearward from between two channel rows adjacent to each other on the rear surface of the head chip 2.