A fluid ejection device for ejecting a fluid to incise or excise a target includes: a fluid supplying unit which supplies the fluid an operation unit to which the fluid supplied from the fluid supplying unit continues a fluid ejection tube which ejects the fluid continuing to the operation unit an ejection mode selecting unit which allows a predetermined ejection mode to be selected an acceleration sensor which detects an operation acceleration of the operation unit and a controller which controls ejection of the fluid, using a preset acceleration that is set on the basis of the ejection mode that is selected, and the operation acceleration detected by the acceleration sensor.
