The study of using near-infrared light to non-invasively detect has been a worldwide hot issue in the field of biomedical engineering.Near-infrared encephalic-hemorrhage monitor can be used to detect encephalic hemorrhage exactly in a short time, which can offer evidence for CT or MRI.By doing so,neurosurgery can shorten the operation-preparing time.Therefore,the survival rate and neural resumption of patients can be increased obviously.