Abstract: Disclosed is a fixing device for fixing a communication device, including an upper mounting member, a lower mounting member, and at least one limiting mechanism fixed to the upper mounting member and/or the lower mounting member; the lower mounting member including a fixing portion fixed to the lower end of the communication device and a hinge portion hinged to the fixing portion; and the limiting mechanism configured to limit the fixing portion from continuing to rotate relative to the hinge portion in response to that the upper mounting member is not fixedly connected to the communication device and the fixing portion rotates a preset angle relative to the hinge portion along a preset path, the preset angle is greater than 0° and less than 140°. A communication apparatus is also disclosed.