A gaming machine includes: a reel having an outer circumferential surface on which symbols are lined up; a reel driving mechanism which rotates the reel to rearrange the symbols; a magnet which is provided in the reel driving mechanism to change an external magnetic field in accordance with the rotation of the reel; a magnetic force detecting mechanism which detects a magnetic force of the external magnetic field so as to output a magnetic force detection signal; a reel setting unit by which the magnetic force detection signal and arrangement positions of the symbols are associated with one another; and a reel drive control unit which controls the reel driving mechanism so that the symbols are rearranged in a predetermined arrangement based on the magnetic force detection signal and the arrangement positions of the symbols.