A puncture device includes a first base plate a second base plate a base plate connection part having flexibility and connecting the first base plate and the second base plate in a horizontal direction an adhesive means provided to surfaces in a same direction of the first base plate and the second base plate and a puncture needle moving means provided in the first base plate and movably supporting a puncture needle. The puncture needle is supported away from a surface of the adhesive means a given distance and movable substantially in parallel to the surface of the adhesive means.