Accurate evaluation of fluid responsiveness in the body has been a hot topic in clinical researches. Dynamic indexes are widely concerned due to the inaccuracy and innovation of static indexes. However, each dynamic index has its own scope of application and most of the dynamic indicators are applicable to the evaluation of capacity reactivity under mechanical ventilation. With the development of medicine, the research of non-invasive and easy to use ultrasonic measurement index and dynamic index caused by autologous volume load test is the hottest. This paper reviews the relevant research of various dynamic indicators so as to provide reference for clinical liquid therapy.