Critical care ultrasound (CCUS) has gradually become an indispensable monitoring tool in intensive care unit due to noninvasive, real-time and repeatability and is playing an important role in etiological screening, disease diagnosis, treatment and efficacy evaluation, especially in hemodynamic monitoring of septic shock. The etiology of septic shock is so complicated that often affect the hemodynamic status of patients, increasing the difficulty of diagnosis and treatment. CCUS can dynamically monitor the changes in volume and organ function through cardiopulmonary and renal examination, which is combined with clinical information and other monitoring methods to manage the patient's diagnosis and treatment and evaluate their prognosis more accurately, timely and comprehensively. The aim of this article is to enhance the understanding and clinical utility of ultrasonic knowledge and provide reference in patients' hemodynamic monitoring methods for clinicians after reviewing the application of CCUS in hemodynamic monitoring of septic shock.