The significance of ultrasound of liver, gallbladder and spleen lies in the fact that ultrasound can observe common diseases of these organs and provide assistance to clinicians in diagnosis and treatment. when ultrasound examines the liver, it can generally observe benign lesions of the liver, such as liver cysts, hepatic hemangiomas and calcified foci of the liver, which usually do not require treatment with drugs, and in the case of larger cysts and hemangiomas, we can also perform puncture under ultrasound guidance Ultrasound can also identify malignant tumors in the liver. If an inhomogeneous mass is found in the parenchyma of the liver with irregular pattern and unsmooth edges, combined with the medical history, it is highly suspected to be a malignant tumor and can also be diagnosed by ultrasound-guided aspiration biopsy or ablation. Ultrasound can measure the size of the spleen and observe the morphology of the spleen, which can also provide great help to the clinician in diagnosis and treatment.