Inclusion Criteria:  Patient is between 18 and 80 years of old; Patients with ICH rupture into the ventricle in the primary basal ganglia region or non-aneurysmal subarachnoid hemorrhage confirmed by skull imaging examination; Patient is admitted to hospital within 72 hours after onset; Informed consent of the patients or their family members, and signed informed consent for CSF replacement treatment.  Exclusion Criteria:  Non-spontaneous intracranial hemorrhage; Time from onset to admission is longer than 72 hours; The patient who needs surgical treatment; Contraindication of lumbar puncture, such as: cerebral hernia, severe intracranial hypertension, puncture site inflammation, blood system diseases, etc.; Patient has other serious diseases, such as heart failure, kidney failure, liver failure, etc; Patient or his/her relatives refuse to accept the above research plan.