To provide a puncture device capable of reliably puncturing a prescribed region of a skin with a puncture needle.

The puncture device 1 is used to puncture the skin with the puncture needle 2. The puncture device 1 is equipped with the puncture needle 2 with a curved part 22, a retaining member 3 for retaining the puncture needle 2, an indwelling device 5 placed in a body by the puncture needle 3, and a guiding member 4 placed on a prescribed position of a body surface F and punctures the skin with the puncture needle 2 along the guiding member 4.