A drum-type washing machine comprising: an outer tub, which is disposed within a machine housing; a drum, which is disposed in the outer tub and rotatable about a horizontal axis or about an axis inclined with respect to a horizontal direction; a rotating body, which is disposed in the drum and having a protruding portion in contact with laundry on a surface of the rotating body; and a driving portion, which comprises a driving motor and is configured to transmit a torque of the driving motor to the drum and the rotating body so as to rotate the drum and the rotating body at different rotation speeds; characterized in that the drum-type washing machine further comprises: a controlling portion for controlling an operation of the driving portion; and a detecting portion for detecting a rotation speed of the driving motor; wherein the controlling portion is configured to perform a reduction control for reducing a load when a magnitude of the load applied to the rotating body exceeds a predetermined magnitude in at least one of following processes: a washing process and a rinsing process, and the controlling portion is further configured to adjust an electric power to be supplied to the driving motor so that the driving motor rotates at a target rotation speed, when the rotation body is rotated under control of the controlling portion, and perform the reduction control, when the rotation speed of the driving motor reaches the target rotation speed that is not greater than a threshold value; wherein the controlling portion is configured to rotate the driving motor so that the drum rotates at a rotation speed at which a centrifugal force acting on the laundry in the drum becomes greater than the gravity, as the reduction control. an outer tub, which is disposed within a machine housing; a drum, which is disposed in the outer tub and rotatable about a horizontal axis or about an axis inclined with respect to a horizontal direction; a rotating body, which is disposed in the drum and having a protruding portion in contact with laundry on a surface of the rotating body; and a driving portion, which comprises a driving motor and is configured to transmit a torque of the driving motor to the drum and the rotating body so as to rotate the drum and the rotating body at different rotation speeds; characterized in that the drum-type washing machine further comprises: a controlling portion for controlling an operation of the driving portion; and a detecting portion for detecting a rotation speed of the driving motor; a controlling portion for controlling an operation of the driving portion; and a detecting portion for detecting a rotation speed of the driving motor; wherein the controlling portion is configured to perform a reduction control for reducing a load when a magnitude of the load applied to the rotating body exceeds a predetermined magnitude in at least one of following processes: a washing process and a rinsing process, and the controlling portion is further configured to adjust an electric power to be supplied to the driving motor so that the driving motor rotates at a target rotation speed, when the rotation body is rotated under control of the controlling portion, and perform the reduction control, when the rotation speed of the driving motor reaches the target rotation speed that is not greater than a threshold value; wherein the controlling portion is configured to rotate the driving motor so that the drum rotates at a rotation speed at which a centrifugal force acting on the laundry in the drum becomes greater than the gravity, as the reduction control.