The invention discloses a loading and unloading device, a loading and unloading method and a hot bending machine. The loading and unloading device comprises a rack and a transferring mechanism; and the rack is provided with a thermal insulation channel; the transferring mechanism is used for moving a die from an outlet of the hot bending machine to an inlet of the hot bending machine along the thermal insulation channel to enable the die to always keep at a first temperature higher than a room temperature in the movement, die opening and die closing process. The loading and unloading device provided by the invention can enable the die to always keep at a certain temperature higher than the room temperature, the die does not need to be cooled with glass together, so that the energy consumption is reduced, and the working efficiency is improved.