PROBLEM TO BE SOLVED: To provide a novel syringe type ejector that is capable of splitting up content fluid and jetting with a prescribed quantity and that also simplifies operation for jetting.SOLUTION: By pressurization of an operation part 52, an insertion wall 54 is inserted inside in the radial direction of a free end 44b of an elastic arm 44, with deformation regulated for the free end to the inside in the radial direction. A first pressurizing face Fpcomes into contact with a first pressure receiving face Fr, with a sliding projection 45 pushed into the syringe 2 in the continuation of the pressurization of the operation part 52. In a state in which the intermediate part in the forward/backward direction of the elastic arm 44 is elastically deformed inside the radial direction, the sliding projection 45 slides on the inner peripheral face of the syringe 2. An engaging projection 46 comes into contact with the syringe 2 to stop the pushing in of a piston P, relaxing or releasing the pressurizing force of the operation part 52, or drawing the operation part 52 rearward. Then, the insertion wall 54 falls out from inside the radial direction of the free end 44b, with the side part of the free end 44b of the elastic arm 44 recovered. With further pressurization of the operation part 52, the second pressure receiving face Fris pressed against the second pressurizing face Fp, with the piston P pushed in.
