Abstract: A single phase brushless high-speed motor, comprising: an outer housing, a stator assembly, and a rotor assembly; the stator assembly including a coil bobbin, stator coils and a stator core; the stator core including two core blocks, which comprise tooth portions, two opposite ends of the tooth portions being provided with a first magnetic yoke and a second magnetic yoke; the tooth portions of the stator core being engaged with each other to form an inner hole of the stator; the rotor assembly comprising an integral bearing, one end of the integral bearing being connected to an impeller, and the other end being mounted around magnets, which form magnetic body having two poles. The volume of the single-phase brushless motor is decreased and the requirements for the miniaturization of single-phase brushless motors are satisfied by arranging a mounting structure comprising a stator assembly and a rotor assembly.