MRI refers to cranial magnetic resonance imaging and MRA refers to cranial angiography, both of which can be done together. The organic combination of MRI and MRA provides comprehensive information for the early clinical treatment of cerebrovascular disease. The simultaneous performance of MRI and MRA is now widely recognized by clinicians as being able to detect not only ischemic cerebrovascular disease and hemorrhagic cerebrovascular disease, but also intracerebral tumors and other occupying lesions, such as aneurysms. It can also achieve the role of differential diagnosis. If clinicians want to understand the comprehensive information of brain parenchyma and cerebrovascular, they can combine the two together to obtain satisfactory results.