The present invention provides a delivery device and puncture device can be punctured to the predetermined site of the skin puncture needle securely. And a puncture needle moving means for movably holding the puncture needle, and a skin deforming means for deforming the skin, delivery device and puncture device of the present invention, moving the puncture needle through the puncture needle moving means configured to puncture the skin was deformed by the deforming means the skin.本発明は、穿刺針を確実に皮膚の所定の部位に穿刺することができる穿刺器具及び投与器具を提供する。本発明の穿刺器具及び投与器具は、前記穿刺針を移動可能に保持する穿刺針移動手段と、皮膚を変形させる皮膚変形手段と、を備え、前記穿刺針移動手段によって穿刺針を移動させて、前記皮膚変形手段により変形させた皮膚に穿刺するように構成される。