To provide a centrifugal pump capable of reducing the number of parts and assemblage manhours to suppress increase of pump cost, and achieving reduction of noise and improvement of performance.

In this centrifugal pump 1, a motor part 2 having a water suction port 11 and a pump part 3 having a delivery port 41 are integrally composed. In the motor part 2, a rotor 20 having a magnetic substance 22 on an inner circumference of a stator 12 is disposed to be rotatable around a rotation shaft 21. In the pump part 3, a runner 24 provided on the rotor 20 feeds fluid sucked from the water suction port 11 to the delivery port 41. A shroud 25 is provided between the magnetic substance 22 and the runner 24. At least the magnetic substance 22 and the shroud 25 are integrated to form the rotor.