An ultrasound probe is provided, which includes a transmitter, a receiver and a controller. The transmitter includes a signal receiving element. The transmitter includes a plurality of signal transmitting element； there is an included angle between each signal transmitting element and the signal receiving element, and the included angles of the signal transmitting elements and the signal receiving element are different from each other. The controller is connected to the transmitter and the receiver； the controller alternately drives the signal transmitting elements and the signal receiving element receives the echo signal of each signal transmitting element. The controller makes a comparison among the echo signals and selects one of the signal transmitting elements as a target signal transmitting element according to the comparison result； then, the controller generates a measurement result according to the echo signal of the target transmitting element.一種超音波探頭，其包含接收端、發射端及控制器。接收端包含訊號接收元件。發射端包含複數個訊號發射元件，各個訊號發射元件與訊號接收元件之間具有夾角，且該些訊號發射元件與訊號接收元件之間的夾角彼此不同。控制器與發射端及接收端連接，並依序驅動該些訊號發射元件，再由訊號接收元件接收各個訊號發射元件之回波訊號。其中，控制器比較該些回波訊號並根據比較結果由該些訊號發射元件選擇其中之一者做為目標訊號發射元件，並根據目標訊號發射元件之回波訊號產生量測結果。
