A pan and tilt apparatus usable with a camera, and more particularly, a driving mechanism to linearly maintain a tilting angle of the camera relative to a rotating angle of a tilt motor. The pan and tilt apparatus includes a tilting driving mechanism having the tilt motor to induce tilting motion of the camera, a panning driving mechanism to induce panning motion of the camera, and a link device to transmit a driving force of the tilt motor to the camera, such that the tilting angle of the camera varies linearly relative to the rotating angle of the tilt motor.