The invention provides an electric machine rotor and an electric machine. A motor rotor includes a rotor core and a permanent magnet, the rotor core is provided with a plurality of claw-shaped mounting grooves in the circumferential direction, The claw-shaped mounting groove comprises a tail magnetic isolation groove and a plurality of long-bar grooves, wherein the long-bar grooves extend along the inner and outer directions of the rotor core, one end of the long-bar grooves close to the inner side of the rotor core is communicated with the tail magnetic isolation groove, the long-bar groovesare located on the side of the tail magnetic isolation groove away from the center of the rotor of the motor, and permanent magnets are arranged in each long-bar groove. The invention adopts a claw-shaped mounting groove to mount a permanent magnet, and the permanent magnet is divided into a plurality of pieces and installed in the claw-shaped mounting groove, so that the thickness of the permanent magnet can be reduced and the magnetization difficulty of the permanent magnet can be reduced. In addition, the surface area of the permanent magnet in the claw-shaped mounting groove in the invention is improved, which can remarkably improve the magnetic convergence ability of the motor rotor, thereby improving the torque density of the motor rotor, and is particularly suitable for improving the magnetic convergence ability of the motor rotor with a small pole number.