The model to early predict delayed cerebral ischemia based on a combination of eight factors (each occurring counts as one point): Age ≥ 60, syncope at onset, Glasgow coma scale ≤ 9 points, World Federation of Neurosurgical Societies scale ≥ 3, Acute Physiology and Chronic Health Evaluation II scale > 9, intraventricular haemorrhage, and ruptured aneurysm size ≥ 5 mm, area under curve 0.7867 (95% confidence interval: 0.6836 - 0.8898), at the cut-off point of 4, the risk of patients presenting delayed cerebral ischemia was increased by 8.31 (95% confidence interval: 2.4 - 32.39) with sensitivity was 77.27% and specificity was 70.97%.