PROBLEM TO BE SOLVED: To provide a needleless syringe which can control the quantity of injection solution remaining in the syringe after injection, as much as possible.SOLUTION: In the needleless syringe, before injection, a substance to be injected is stored in a storage space formed between an upstream stopper member and a downstream stopper member, and a pressure is transmitted through the upstream stopper member to the substance to be injected. The channel portion through which the pressurized substance to be injected flows, includes: a storing part for storing the downstream stopper member moving together with the substance to be injected downstream of the moving direction a moving passage connecting the initial position of the downstream stopper member before pressure application, through which the downstream stopper member moves by the pressure application and at least one nozzle channel having both an inlet opened so as to communicate with the moving passage and an exit hole for the a substance to be injected, in which the a substance to be injected circulate through the nozzle channel and moving passage via the inlet, with the downstream stopper member being stored in the storing part.
