Provided are an ultrasonic probe and an ultrasonic diagnostic apparatus, which reduction parastic impedances which occurs in upper electrodes and lower electrodes and thereby reducing cross talk. The ultrasonic probe comprises a cMUT chip (20) having a plurality of transducer elements and an acoustic lens (26) ON the ultrasonic wave irradiation side of the cMUT chip (20), a backing layer (22) ON the back of the cMUT chip (20), and wires connected with the cMUT chip (20). This cMUT chip (20) includes a plurality of upper electrodes (46) and a plurality of lower electrodes (48), and these lower electrodes (48) are connected at two or more portions with wires.
