According to one embodiment, an ultrasonic diagnostic apparatus includes a processor. The processor generates assistance information to assist an operation of a puncture needle based on pressure information acquired from a pressure sensor attached to the puncture needle. The processor displays on a display the assistance information and an ultrasonic image which includes at least an image of a tip of the puncture needle, the ultrasonic image being acquired by transmission and reception of ultrasonic waves by using an ultrasonic probe.