The invention discloses a large-angle rotating device and a notebook computer. By means of movement control units, 360-degree synchronous opening and closing of a double-shaft hinge are achieved, torque is provided by torsion units, and the movement control units and the torsion units are fixed to the same first rigid body and the second rigid body so that problems about synchronization and balance can be solved more stably. The outer diameter of the hinge does not need to be increased to increase the torque, and the torque can be increased by increasing the number of the torsion units and the movement control units so that the device can be applicable to schemes of thinner NBs, and the common design of the hinge is achieved more easily. Connection portions of the torsion units and the movement control units can be wrapped by means of wrapping elements made of a flexible material, and the overall appearance can be beautified. External flexible connection of the double-shaft synchronous hinge can change the appearance of the traditional NBs, and the computers (NB) of the structure can be connected more perfectly and more smoothly on the rotating portions.