The invention provides a conductive thin-film key device and a keypad. The conductive thin-film key device comprises a basic part, an induction part and a connector, wherein the basic part comprises a substrate and a glue layer which are sequentially arranged, and a groove is formed in the face, facing the glue layer, of the substrate; the induction part comprises a conductive metal layer and a carbon layer which are sequentially arranged in the groove, and the induction part is located between the substrate and the glue layer; the connector comprises a body, a first hook and a second hook, the first hook and the second hook are arranged at two ends of the body, the body is arranged on the side, away from the glue layer, of the substrate and corresponds to the induction part, and the first hook and the second hook are oppositely arranged and fix the induction part on the basic part. The two hooks of the connector are oppositely arranged and fix the induction part, and a single rivet for fixation in the prior art is replaced with multiple hooks for fixation, so that the effective contact area of the connector and the induction part is larger, the connector is not prone to loosening, the induction part can be fixed to the basic part more firmly, and key failure caused by poor contact of the induction part is avoided.