The invention discloses a wireless self-directional hydraulic deflector. The deflector comprises a hollow joint, a feeding device, a deflector inclined iron and a setting anchoring device which are sequentially connected, wherein the setting anchoring device comprises a cylinder sleeve, an upper conical body and a lower conical body which are arranged in the cylinder sleeve, and a limiting pipe used for connecting the upper conical body with the lower conical body; a setting clamping edge is arranged at the lower end of an inner hole of the lower conical body; a valve core and a pressure spring are arranged between the limiting pipe and the setting clamping edge and in the lower conical body, and the upper end of the valve core is in clearance fit with the inner hole of the lower conical body; a circulation gap is formed between the lower end of the valve core and the setting clamping edge; and the pressure spring is compressed when the displacement of drilling fluid reaches or exceedsa preset value, the valve core is pressed on the setting clamping edge to close the circulation gap, and thus pressureout setting is realized. The deflector not only can circulate the drilling fluidso as use a wireless logging instrument for orientation, but also can realize pressureout setting after the orientation is completed, the operation is reliable, and the directional operation time andthe well building period are shortened.