Most superficial hemangiomas can be diagnosed based on history and signs, and necessary imaging is performed for subcutaneous and especially diffuse lesions. It is of decisive significance to clarify the nature and extent of lesions, their relationship with surrounding tissues, and to formulate treatment plans and prognosis. Ultrasound: Ultrasound can clearly show superficial soft tissue masses and distinguish between cystic and solid, and color Doppler can show the distribution of tumor arteries and veins, internal microstructure and their respective characteristics. When the surrounding tissues are close to the echogenicity of the tumor, it is difficult to distinguish. 2.Digital subtraction angiography: It can accurately reflect the scope of abnormal vascular mass, blood supply arteries, returning veins and other information, clearly display the vascular variation, and dynamically display the hemodynamic characteristics of the lesion with high resolution. It can also perform endovascular treatment, which has an important role in the diagnosis and treatment of head and facial hemangioma. The disadvantage is that it requires high dose of contrast agent, large amount of radiation, invasive examination and high cost. 3.CT angiography: CT angiography three-dimensional reconstruction image can show the location, morphology and scope of hemangioma in three dimensions, and can clearly show the travel of blood and the relationship with surrounding tissues, which has important value for the diagnosis, typing and treatment of hemangioma on the body surface. However, it is significantly lower than DSA for small vessels and cannot reflect the hemodynamic situation. 4.Magnetic resonance angiography: MRA can clearly show the scope of the lesion and the relationship with the surrounding soft tissues, and can distinguish different types of hemangiomas, and can show the arteries and veins separately or simultaneously, which has important value for the diagnosis and identification of soft tissue hemangiomas. Since MRA has the advantages of non-invasive and non-radiating, it can clearly show the vascular lesions without contrast agent, and is often used as an important diagnostic basis instead of angiography.