The invention discloses a deflector rod device for an aircraft engine fan blade, which comprises a handle, a front pipe section, a rear pipe section, a bracket A, a bottom plate A and a driving mechanism, wherein the handle is connected with one end of the front pipe section; an overrunning clutch is arranged at the joint of the handle and the front pipe section, and is used for limiting anticlockwise rotation of the handle; the bracket A is arranged at a position, near the joint, of the front pipe section, and is fixed on the bottom plate A via a dovetail-type chute; the other end of the front pipe section is connected with one end of the rear pipe section; and the other end of the rear pipe section is connected with the driving mechanism via a connecting shaft. The deflector rod device has the advantages of being simple in structure, easy to disassemble, and convenient for long-distance toggling of the aircraft engine fan blade.