The invention provides a tattoo device. The tattoo device comprises a shell, a needle and an elastic membrane; the needle is guided in the shell and can move between an extended position and a retracted position; the shell is provided with a needle mouth allowing the need to stretch out, and the needle mouth extends forwards to form an operation section making contact with the tattooed body; the elastic membrane is made from materials capable of elastically extending, and the front space of the front side of the elastic membrane and the back space of the back side of the elastic membrane are formed in the shell; a linkage structure is arranged on the needle and fixedly connects the needle with the elastic membrane, restoring force generated by the elastic membrane acts on the needle, and the needle is made to move backwards to return to the retracted position; the elastic membrane further generates the force making the needle tend to the operation section. Accordingly, by arranging the elastic membrane which can generate the force making the needle tend to the operation section, the needle is made to be attached to the operation section, when a person applying the needle conducts tattoo operation, the needle application position can be determined accurately according to the operation section, when the needle is close to the operation section, the operation section provides support for the operation section, and shaking of the needle during needle application is reduced.