A robotic surgical apparatus, provided with a robot arm portion, an operation portion that receives an input by a user for operating the robot arm portion, and a tool control portion configured to operate the robot arm portion based on the input which the operation portion receives from a user, includes: a fluid chamber a pulsating flow-provision portion configured to provide a fluid within the fluid chamber with a pulsating flow a fluid ejection tube which includes a fluid ejection port for ejecting a fluid a fluid supply portion which supplies a fluid to the fluid chamber and a fluid ejection control portion which controls the pulsating flow-provision portion. The fluid ejection tube is mechanically fixed to the robot arm portion, and the fluid ejection control portion is configured such that the ejection amount of a fluid per unit time can be changed in accordance with the movement speed of the fluid ejection port.
