Wearable devices have developed rapidly in the medical field with the rise of mobile medical care and continuous progress in the fields of new materials,integrated circuits,and artificial intelligence in recent years.As a fast,simple,and safe diagnosis and treatment tool,ultrasound technology has had many applications in the medical field since its birth.Wearable ultrasound systems combine the advantages of wearable devices and ultrasound technology,and have a huge space for development.This paper discusses the development background and composition of wearable ultrasound systems,focuses on the application results of wearable ultrasound systems in the field of medical monitoring and treatment in recent years,and finally forecasts the development prospect of wearable ultrasound systems.