A display device for ultrasound energy includes a focused ultrasound emitting and receiving device, a processing device and a display. The processing device generates a first electrical signal and transmits it to the focused ultrasound emitting and receiving device to control the focused ultrasound emitting and receiving device to emit at least one first ultrasound signal to a target position of an organism. The target position reflects the first ultrasound signal to form at least one second ultrasound signal. After generating the first electrical signal, the processing device drives the focused ultrasound emitting and receiving device to start to receive the second ultrasound signal only during a preset period after the estimation period. The processing device uses the display to display an image of the target position according to the second ultrasound signal, and brightness of the image is directly proportional to energy intensity of the first ultrasound signal.本發明係揭露一種超音波能量顯示裝置，包含互相連接之一聚焦式超音波收發裝置、一處理裝置與一顯示器。處理裝置產生第一電訊號給聚焦式超音波收發裝置，以控制聚焦式超音波收發裝置朝一生物體之一目標位置發射至少一第一超音波訊號，目標位置將其反射，以形成至少一第二超音波訊號。在產生第一電訊號後，經過一預估時段，處理裝置驅動聚焦式超音波收發裝置僅在一預設時段內開始接收第二超音波訊號，以據此於顯示器上顯示目標位置之影像，使影像之亮度與第一超音波訊號之能量強度成正比，進而對生物體達到藥物釋放及有效治療之目的。
