An integrated shielding protector and a wire harness are provided so that the man-hours concerning the wiring operation can be reduced, and the number of components also can be reduced. A conductive integrated shielding protector, including a first high voltage accommodating part, a second high voltage accommodating part and a low voltage accommodating part, is used when first high voltage wires the voltage of which is high, second high voltage wires the voltage of which is high but lower than that of the first high voltage wires, and low voltage wires the voltage of which is low are wired in parallel in the same course. A wire harness, including the integrated shielding protector, the first high voltage wires, the second high voltage wires and the low voltage wires, is wired inside a vehicle compartment.