The invention discloses an ultrasonic probe bracket for laboratories. The ultrasonic probe bracket comprises a probe fixing bracket, wherein the probe fixing bracket comprises a base, a telescopic guiderail, a sliding block and a fastener; the bottom end of the telescopic guiderail is glidingly connected with the base; the sliding block slides up and down on the telescopic guiderail and can be fixed on the telescopic guiderail; a mounting hole is formed in the sliding block; a sliding slot is formed in the side wall of the mounting hole; the fastener comprises a fixture block and a spring; thefixture block is glidingly arranged in the sliding slot; the fixture block is fixedly connected with one end of the spring; the other end of the spring is fixed on the bottom wall of the sliding slot; and the position between the fixture block and the mounting hole is used for mounting an ultrasonic probe. The ultrasonic probe is capable of moving simply and rapidly, and can be in good contact with to-be-detected test pieces so as to improve the detection accuracy.