In order to stably administer a medicine into dermis by improving the operability of a device for sticking a microneedle in skin, an impacting type applicator (1) for a microneedle patch is an applicator for applying a microneedle patch (3) to skin, and is provided with a main body (5), a spring telescopic lever (7), an elastic body (9), a stop mechanism (11), and a drive switch (13). The spring telescopic lever (7) is movably attached to the main body (5), and has a leading end to which the microneedle patch (3) is attachable. The elastic body (9) is a member for applying biasing force to the spring telescopic lever (7). The stop mechanism (11) is a mechanism for stopping the spring telescopic lever (7) in a state where the biasing force of the elastic body (9) acts on the main body (5). The drive switch (13) is a member for releasing the engagement of the stop mechanism (11) and the spring telescopic lever (7). Moreover, a biasing force application mechanism (121) further applies biasing force to the spring telescopic lever (7) in a state where the microneedle patch (3) is pressed against the skin by the movement of the spring telescopic lever (7) to the leading end side of the main body (5).本發明之課題為提高用以使微針刺穿皮膚的裝置的操作性，進而實現藥劑穩定投入真皮內。本發明提供一種微針貼片用衝擊附加型施用器1，係用以將微針貼片3貼附於皮膚，具有：本體5；彈簧伸縮桿7；彈性體9；擋止機構11；以及打入開關13。彈簧伸縮桿7係對於本體5以可移動的方式裝設，且於前端可裝設微針貼片3。彈性體9為用以賦予彈簧伸縮桿7賦能力的構件。擋止機構11為用以在對於本體5作用有彈性體9之賦能力的狀態下擋止彈簧伸縮桿7的機構。打入開關13為用以解除擋止機構11與彈簧伸縮桿7之扣合的構件。另外，賦能力賦予機構121係在彈簧伸縮桿7移動至本體5之前端側而微針貼片3壓上皮膚的狀態下，更進一步對於彈簧伸縮桿7賦予賦能力。
