Abstract: A skin-contact microphone device is provided herein, which at least contains a linear body having appropriate plasticity and flexibility, and a voice collection element configured at an end of the linear body. The linear body is structured into a three-dimensional shape which, when viewed from the top, has a curved shape like the letter ‘C’ and, when viewed from a side, has a shape like the symbol ‘<’ as the two ends of the linear body are bended upward and downward for an appropriate angle respectively. With this three-dimensional structure, the microphone device is able to have its voice collection element stably and reliably positioned at its best location, which is close to the jaw around the top of a user's throat by having its the other end supported by the muscle around the user's clavicle.