The present invention relates to a blood pump. The blood pump according to the present invention includes: a housing including an inlet, through which blood flows, at an upper part of the housing and an outlet, through which the blood is discharged, along an edge of the housing； an impeller part, which is rotatable and disposed inside the housing, including a plurality of blades on the surface thereof so as to move the blood flowing in through the inlet toward the outlet by using a centrifugal force； a rotary shaft member disposed to penetrate the center part of the impeller part so as to support the impeller part to be rotatable which moves the blood to the lower part thereof； and a magnetic body disposed on the impeller part for rotating the impeller part in a predetermined direction according to a change in a magnetic field outside the housing.
