Abstract: An uninterrupted communication rotary shaft device comprises a housing, a rotary shaft set, a rotary disk, two communication wires, and a spiral spring. The rotary shaft set is engaged with the rotary disk and is formed by insulating disks of an odd number and conductive disks of even numbers. Each conductive disk is connected to a communication wire. A connecting seat with a receptacle is disposed at the place that the first ring adjacent to the pivotal connecting hole. A plurality of conductive elements are arranged in the connecting seat. One end of each conductive element is in contact with respective conductive disk, while another end is connected to each conductive wire of another communication wire. Two communication wire may retain uninterruptedly ad the rotary disk rotates. Besides, the edge of the rotary disk has a ratchet.