A permanent magnet type rotating electric machine comprising: a rotor and a stator opposed to each other keeping a predetermined clearance therebetween, and the rotor having a rotor core formed by silicon steel plates being laminated in an axial direction of the rotor core, slots being formed near an outer periphery of the rotor core in the rotor core so as to be open at the outer periphery of the rotor core, permanent magnets being inserted into the slots respectively, and a non-magnetic sleeve covering the outer periphery of the rotor core, wherein each of the permanent magnets is fixed into the slot with a force applied from the sleeve, the force directing toward a center of the rotor core, and a pressure applied from inclined side faces of the slot, characterised in that the inclined side faces of each of the slots are outwardly broadening the slot in a radial direction of the rotor core, and each of the permanent magnets has a wedge-shaped form fitting to the slot, so that it is possible to easily insert the permanent magnets into the slots and prevent rattling of the permanent magnets within the slots, an initial surface pressure for fixing the permanent magnet is applied to the permanent magnet by the force pressing the magnet into the slot and the pressure applied to the wedge-shaped permanent magnet from the inclined side faces of the slot, and in the inclined side faces of the slot, one inclined side face, which is opposite to another inclined side face subjected to a pressure of the permanent magnet with a resultant force of both a centrifugal force of the rotor and an electromagnetic force generated by the stator, is provided with a first side face part tightly fitting to a part of the permanent magnet so as to press the permanent magnet against the first side face part and a second side face part inclined so as to gradually increase a clearance between the second side face part and the permanent magnet toward an outer periphery-side of the rotor. a rotor and a stator opposed to each other keeping a predetermined clearance therebetween, and the rotor having a rotor core formed by silicon steel plates being laminated in an axial direction of the rotor core, slots being formed near an outer periphery of the rotor core in the rotor core so as to be open at the outer periphery of the rotor core, permanent magnets being inserted into the slots respectively, and a non-magnetic sleeve covering the outer periphery of the rotor core, wherein each of the permanent magnets is fixed into the slot with a force applied from the sleeve, the force directing toward a center of the rotor core, and a pressure applied from inclined side faces of the slot, characterised in that the inclined side faces of each of the slots are outwardly broadening the slot in a radial direction of the rotor core, and each of the permanent magnets has a wedge-shaped form fitting to the slot, so that it is possible to easily insert the permanent magnets into the slots and prevent rattling of the permanent magnets within the slots, an initial surface pressure for fixing the permanent magnet is applied to the permanent magnet by the force pressing the magnet into the slot and the pressure applied to the wedge-shaped permanent magnet from the inclined side faces of the slot, and in the inclined side faces of the slot, one inclined side face, which is opposite to another inclined side face subjected to a pressure of the permanent magnet with a resultant force of both a centrifugal force of the rotor and an electromagnetic force generated by the stator, is provided with a first side face part tightly fitting to a part of the permanent magnet so as to press the permanent magnet against the first side face part and a second side face part inclined so as to gradually increase a clearance between the second side face part and the permanent magnet toward an outer periphery-side of the rotor.