A laser scanning sensor (100) includes: a head part (110) having a shape inscribed in a virtual cube, wherein the head part has a wiring hole (122) oriented to an intersection of three mutually orthogonal planes in the cube, and attachment portions (123a-123c) provided one each at inscribed points in the three planes, and wherein the head part is further configured to acquire range information in each measurement direction by containing a laser range finder (111) and a scanning mechanism (112) for changing a measurement direction by the laser range finder (111); a base part (140) configured to be mounted on an installation surface; and a joint part (130) configured to join any one of the attachment portions (123a-123c) in the head part (110) with the base part (140).