The invention relates to the technical field of special machining equipment, in particular to a complex hook face part electrosparking and detecting device. The complex hook face part electrosparking and detecting device comprises a base, a working solution groove, a stand column, an electrode, a first measurement head module installation mechanism and a B-axis rotating device; an X-axis motion device and a Y-axis motion device which drive the working solution groove to move along the X axis and the Y axis are arranged on the base; a dual-axis total immersion liquid rotation table comprising an A axis and a C axis is fixed into the working solution groove, and a second measurement head module is further arranged on the side edge of a rotation working table; a Z-axis motion device for driving the B-axis rotating device to move along the Z axis is arranged on one side of the stand column; the B-axis rotating device is used for driving the electrode and the first measurement head module installation mechanism to rotate around the B axis; and the electrode and the first measurement head module installation mechanism comprise a rotary connection plate fixed through the B-axis rotating device, one end of the rotary connection plate is fixedly provided with a first measurement head module, and the other end of the rotary connection plate is fixedly provided with a discharge electrode. According to the complex hook face part electrosparking and detecting device, six-axis linkage and online real-time detection are achieved, and the machining efficiency and the detection accuracy are improved.