The utility model relates to an ultrasonic probe of transceiver wafer with enlargement and output functions, which is characterized in that: based on the prior ultrasonic probe, a magnifier and an embedded circuit are arranged inside a shell; the signal terminal of a piezoelectric chip is fetched out from the shell by a wire and is connected with the output terminal of an ultrasonic pulse generator; the signal terminal of the piezoelectric chip is connected with the input terminal of the magnifier through the embedded circuit; the output terminal of the magnifier is connected with a signal output connector; a power wire of the magnifier is fetched out from the shell; under the control of a detection equipment, the same piezoelectric chip can be used as a transmitting probe and a receiving probe in different time respectively, and the magnifier for receiving signal, the embedded circuit and the piezoelectric chip are arranged inside the same sealed metal shell. The utility model has the advantage of reasonable structure, small size, strong anti-jamming performance, less error and high measuring precision, thereby the utility model is applicable for being used in the probes of ultrasonic testing equipment widely.