Based on smart speech synthesis, speech recognition, natural language processing, medical knowledge base, and other technologies, the ultrasonic speech assistant redefines the ultrasonic report writing mode to assist doctors in writing ultrasonic reports efficiently using voice. By docking with the existing ultrasound system of the hospital, the workflow of ultrasound doctors was optimized without affecting the daily work. When the doctor is examining the patient, he/she can call the report template content to fill the slot, etc., by voice to realize that what is said is achieved so that the ultrasonic inspection can be conducted while the ultrasonic report writing can be completed by speech.