A trigger-type sprayer with excellent usability is provided capable of locking rotation of a nozzle part without using a separate component so as not to cause a nozzle orifice to be inadvertently opened. A trigger-type sprayer A of the present invention moves a piston part 3 by pulling and rotating a trigger part to compress liquid in a cylinder part and cause the liquid to be injected from a nozzle part 1 communicating with the cylinder part, and the trigger-type sprayer A includes a lock function of preventing rotation of the nozzle part between the nozzle part 1 and the trigger part 5.