To provide a hinge device capable of reducing the number of parts, simplifying the constitution of the whole device and improving productivity by applying a starting force to a link mechanism with simple constitution.

A first turning time to allow relative turning of a first hinge base 10 on the vehicle body 1 side and one end of a hinge arm 30, and a second turning timing to allow relative turning of a second hinge base 20 on the door 2 side and the other end of the hinge arm 30, are set by the link mechanism 50. A first cam 61 and a second cam 62 provided at the link mechanism 50 are relatively put in action to operate the link mechanism 50 at the shift time from the first turning time to the second turning time and at the shift time from the second turning time to the first turning time.