A rotating electrical machine comprising: a stator including a stator core and a coil; and a rotor, the rotor including a rotor core including a central axis, a first end surface (24s1), a second end surface (24s2) which is located on an opposite side from the first end surface (24s1) in a direction parallel to the central axis, and a plurality of embedding holes which penetrate from the first end surface (24s1) to the second end surface (24s2), respectively, a plurality of permanent magnets, a first end plate opposed to the first end surface (24s1), and a second end plate opposed to the second end surface (24s2), and the rotor rotatably provided with respect to the stator about the central axis, wherein each of the embedding holes includes a loading region which is loaded with a corresponding permanent magnet of the permanent magnets, a radially outer peripheral space which extends over an entire length of the embedding hole, is continuously provided from the loading region, and exposes the permanent magnet, and a radially inner peripheral space which extends over the entire length of the embedding hole, is continuously provided from the loading region, and exposes the permanent magnet, wherein the first end plate includes one or more first guide grooves each of which covers one or more radially outer peripheral spaces and one or more radially inner peripheral spaces and is configured to form a space for guiding air with the first end surface (24s1), and the second end plate exposes all the radially outer peripheral spaces and all the radially inner peripheral spaces which are covered with the first end plate, and characterized in that the rotor is configured such that air flows into the one or more radially inner peripheral spaces from the second end surface (24s2) side, air passes further through the one or more first guide groove and then the one or more radially outer peripheral surfaces, and air flows out of the one or more radially outer peripheral surfaces to the second end surface (24s2) side. a stator including a stator core and a coil; and a rotor, the rotor including a rotor core including a central axis, a first end surface (24s1), a second end surface (24s2) which is located on an opposite side from the first end surface (24s1) in a direction parallel to the central axis, and a plurality of embedding holes which penetrate from the first end surface (24s1) to the second end surface (24s2), respectively, a plurality of permanent magnets, a first end plate opposed to the first end surface (24s1), and a second end plate opposed to the second end surface (24s2), and the rotor rotatably provided with respect to the stator about the central axis, wherein each of the embedding holes includes a loading region which is loaded with a corresponding permanent magnet of the permanent magnets, a radially outer peripheral space which extends over an entire length of the embedding hole, is continuously provided from the loading region, and exposes the permanent magnet, and a radially inner peripheral space which extends over the entire length of the embedding hole, is continuously provided from the loading region, and exposes the permanent magnet, wherein the first end plate includes one or more first guide grooves each of which covers one or more radially outer peripheral spaces and one or more radially inner peripheral spaces and is configured to form a space for guiding air with the first end surface (24s1), and the second end plate exposes all the radially outer peripheral spaces and all the radially inner peripheral spaces which are covered with the first end plate, and characterized in that the rotor is configured such that air flows into the one or more radially inner peripheral spaces from the second end surface (24s2) side, air passes further through the one or more first guide groove and then the one or more radially outer peripheral surfaces, and air flows out of the one or more radially outer peripheral surfaces to the second end surface (24s2) side.