A medical body surface ultrasonic probe may comprise a probe body and a sticking plate, where the sticking plate may comprise a sub-plate. The sub-plate may be connected to the probe body, and the bottom of the sub-plate may have a sticking layer for attaching a medical body surface ultrasonic probe to a body surface of a monitored user. The medical body surface ultrasonic probe can be used where prolonged, continuous ultrasonic monitoring is required. In addition, a corresponding ultrasonic diagnostic apparatus is also provided.