To provide an apparatus for mixing and jetting two components capable of preventing the second component stored in the second container from being exposed to the open air and being spilt.

The apparatus 50 for mixing and jetting two components is provided with the first container 55 storing the first component 51, the second container 56 stored and held in the first container 51 and storing the second component 52, and a jetting means 57 jetting a mixed liquid. A part 58 to be broken is formed on the bottom wall of the second container 56, and the second container 56 is inserted into the first container 55 to close an opening part 59 of the first container 55, and the second container 56 is stored in the first container 55. The jetting means 57 is screwed into the outer peripheral face of the first container 55, and is provided with a cap means 61 for closing an opening part 60 of the second container 56, a pump means 62, a liquid suction nozzle 64 connected with the pump means 62, and a stopper 65 provided on the cap means 61 so as to regulate a screwing position of the cap means 61 and to be cut by a specified force.