PROBLEM TO BE SOLVED: To retain a puncture degree of a microneedle to a fixed level, no matter who uses it.SOLUTION: The applicator for applying a microneedle to a skin includes: a transmission member having a stopper: a base part on which the stopper is placed and a release mechanism that transmits force along the movement direction of the transmission member to the stopper to deform the stopper or the base and removes the stopper from the base. The transmission member actuated by the release mechanism transmits energizing force by the deformation of the stopper or the base to the microneedle.
