Abstract: With the rapid advancement of hemodynamic indices and monitoring technologies, their classification methods and application processes have become increasingly complex. To date, no unified standard has been established, making it difficult to fully meet the needs of clinical critical care hemodynamic management. To assist in hemodynamic monitoring assessment and therapeutic decision-making in critically ill patients, the Critical Hemodynamic Therapy Collaborative Group and the Critical Ultrasound Study Group jointly formulated the Clinical Application Standard for Hemodynamic Monitoring in Critical Care. In Part 1, the document systematically classifies hemodynamic indices into three categories:flow-related indices, pressure-related and derived indices, and tissue perfusion indices, while elaborating on the clinical application of each. Part 2 establishes a standardized clinical implementation pathway for hemodynamic monitoring, proposing a tiered approach-including basic, advanced, indication-specific, and special-scenario monitoring-tailored to different clinical contexts. It emphasizes the central role of critical ultrasound at all monitoring levels and sets hemodynamic assessment criteria for organs such as the brain, kidneys, and gastrointestinal tract. This standard aims to provide a unified framework for clinical practice, teaching, training, and research in critical care medicine, thereby promoting standardized development within the discipline.