To provide a manufacturing method of a head chip for manufacturing a high resolution recording head inexpensively.

In the manufacturing method of a head chip for ejecting ink filling a groove formed in a piezoelectric ceramic plate from a nozzle opening by applying a driving voltage to an electrode provided on the sidewall of the groove thereby varying the volume in the groove, a cover plate having an ink chamber communicating with the groove is bonded to the piezoelectric ceramic plate thus sealing the upper surface of the groove, and mechanical machining is employed for forming the ink chamber and an opening for supplying ink to the ink chamber.