This is an application for training medical staff to use ultrasound equipment and recognize ultrasound images. Through the actual case, in the form of examination, users can increase and consolidate the application knowledge of ultrasound image under the feeling of actual operation. The topic covers the use of ultrasonic probes for many parts of the human body, the appropriate placement of posture, the identification and labeling of real and representative ultrasound images, and so on. The videos, pictures and other materials that appear in the application are limited to the output of ultrasonic equipment and the image selection of sound models, and do not contain any content that can cause sensory discomfort to users.