Provided in the present utility model is a hinge device, including a first hinge leaf provided with first shaft sleeves, a second hinge leaf provided with second shaft sleeves, a rotating shaft, and flanged bearings, where both the first shaft sleeves and the second shaft sleeves are sleeved on the rotating shaft, each flanged bearing includes a bearing body and a housing in which the bearing body is disposed, the housing is further provided with a connecting portion, and the connecting portions are fixedly connected to either the first shaft sleeves or the second shaft sleeves. According to the hinge device, relative rotation between the first hinge leaf and the second hinge leaf is improved by the flanged bearings, so that the flanged bearings can be removed together with the first hinge leaf or the second hinge leaf, thus avoiding the risk that the flanged bearings fall off.