The invention relates to a full-automatic supersonic frequency quenching machine which comprises a machine frame and a supersonic frequency quenching mechanism arranged on the machine frame. The full-automatic supersonic frequency quenching machine further comprises a conveying mechanism for conveying pin sleeves and a pin sleeve placement mechanism where the pin sleeves are placed. The supersonic frequency quenching mechanism is arranged on the machine frame in the mode of being capable of moving relative to the pin sleeve placement mechanism. The discharging end of the conveying mechanism is arranged corresponding to the pin sleeve placement mechanism. By the adoption of the technical scheme, the pin sleeves are conveyed into the pin sleeve placement mechanism one by one, and the supersonic frequency quenching mechanism is moved to the position near the pin sleeve placement mechanism for carrying out quenching treatment. Compared with manual pin sleeve clamping, supersonic frequency quenching and the conveying mechanism are combined together, the labor intensity is lowered, and the labor productivity is improved.