PURPOSE: To provide an inexpensive compact high pressure washing device which can be applied to multiple uses over wide range and is effective not only for washing but also for sterilization and deodorization.

CONSTITUTION: The device is provided with a booster pump 4 connected to water source 1, an ejector 5 connected to an ejecting side of the booster pump, an ozone generator 6 feeding ozone to the ejector and a spiral reacting pipe 7 capable of ejecting high pressure ozone water from the spiral shaped other end connected to the ejecting side of the ejector, and washing water is fed into the ejector by the booster pump 4 and the ozone from the ozone generator 6 is sucked into the ejector and the ozone is thoroughly dissolved into the washing water due to the spiral shape in the pipe 7. Thus the 'high pressure ozone water' is ejected from the tip part of the spiral reacting pipe 7 to perform washing, sterilization and deodorization.