Abstract: A contactless power transmission structure of a laser distance measuring device, comprising: a first circuit board, disposed on a rotation disk on an upper portion of a main axis, and on said first circuit board is provided with a laser light tube and a lens; a second circuit board disposed at an end of said main axis; a third circuit board, fixed on a bottom seat and is not rotatable; two signal receivers and two signal transmitters, to transmit signals to said laser light tube and said lens, and receive signals sent from said laser light tube and said lens; a motor, located on a side of said main axis, is connected to said main axis through a conveyer belt to make it rotate, and that brings said rotation disk to rotate; and a power structure, connected electrically and supplies power to said first, second, and third circuit board.