A rotary type pulse switch includes a movable electrode 57 having a plurality of contacting portions 57A formed in positions of the same radius from its rotation center, and a fixed electrode 50 disposed face to face with the movable electrode 57 and having a plurality of contacted portions 60 arranged in form of stepping stones on the same circumference as a rotation locus T of the contacting portions 57A. The fixed electrode 50 includes a first fixed electrode pattern 52A, a second fixed electrode pattern 52B and a common fixed electrode pattern 51, each of the fixed electrode patterns 51, 52A, 52B being in a mutually nonconductive state. The contacted portions 60 are arranged in such a positional relationship that a full insulation state occurs during rotation of the movable electrode 57 in which none of the contacting portions 57A contact the first fixed electrode pattern 52A, second fixed electrode pattern 52B or common fixed electrode pattern 51.