To provide a liquid droplet discharge head for performing an inspection of dynamic characteristics of an inspection object in a process immediately after preparing the inspection object.

A liquid droplet discharge head 1 at least comprises: an actuator composed of a diaphragm 4 and a piezoelectric element 18 for compression; a compression liquid chamber 6 provided directly under the actuator; and a liquid resistance part 7 which specifies an inflow amount of liquid to flow in the compression liquid chamber 6, and discharges liquid droplets by driving the actuator. An inspection gap 23 for allowing distortion displacement of a diaphragm component film 4' is formed in a free area except a compression liquid chamber formation area and a liquid resistance part formation area of a silicon single crystal substrate 2' in a midway process of manufacturing the liquid droplet discharge head 1 and directly under the diaphragm component film 4'.