To provide a mist jet head capable of carrying out even jetting out of a nozzle jet port.

In the mist jet head 1 comprising; a jet head body 2 for flowing air current in cylindrical state; and a mist nozzle 3 having a trunk part 3e, which has a nozzle jetting port 3a for jetting a chemical liquid at the tip end in the jet head body 2, a dent part 3f is formed in the side part along the flow direction of air current in the trunk part 3e of the mist nozzle 3, so that air current in the rear side of the trunk part 3e of the mist nozzle 3 is led through the dent part 3f and turned around to a side which is the circumference of the nozzle jetting port 3a and where the flow of the air current in the rear side is shut out by the trunk part 3e of the nozzle 3 to generate sufficient negative pressure in the entire circumference of the nozzle jetting port 3a and thus evenly jet the chemical liquid out of the nozzle jetting port 3a.