PURPOSE: To form external shape of a device in size equal to that in the past and further to obtain a larger turning output by providing a lineared rotary, moved and turned along an axial line direction and provided with a permanent magnet, and a rotary linear guide groove for moving the lineared rotary in the axial line direction.

CONSTITUTION: A lineared rotary actuator main unit 22 is formed by closing both opening end parts of a cylindrical body 19 by cover units 20, 21 serving concurrently as a bearing house, and a rotary linear guide shaft 23, turnable and further movable in an axial line direction, is rotatably supported by bearings 24, 25 mounted to bearing houses 20a, 21a. An electromagnet structural unit 26 is formed of a cylindrical shape, provided with a drive coil 28 in which a large number of turns of lead wires are wound around the periphery of a bobbin 27, so that reciprocating thrust force in the axial line direction is obtained by switching current conduction. A rotary linear guide groove 34, which is for moving a lineared rotary 31 in the axial line direction while turning it at a suitable angle along the axial line direction of the guide shaft, is formed in a peripheral part of the above-mentioned guide shaft 23.