Results: The average admission white blood cell (WBC) count was 14, 25±4, 25 (G / L), the rate of Neutrophil-to-Lymphocyte was 12, 56±9, 9; The average mRankin score (mRS) at discharge from the hospital was 2, 13±2, 48, mRS score 0 - 2 was 68, 9%; The high neutrophil to lymphocyte ratio is associated with poor outcome in aneurysmal subarachnoid hemorrhage.