Objective To investigate the curative effects of microsurgical treatment with small bone flap craniotomy in patients with hypertensive cerebral hemorrhage and on their nerve function in different timing of surgery. Methods To select 80 cases of hypertensive cerebral hemorrhage in our hospital from May 2014 to May 2016 as the research object. The amount of cerebral hemorrhage of the patients was about 30-40 mL. According to the different time of bleeding, they were divided into two groups, 40 cases in each group. The super early period that the time from bleeding to operation was less than 6 h was regarded as the observation group, and the early period that the time from bleeding to operation is during 6~24 h was regarded as the control group. To compare the GOS (Glasgow outcome) excellent rate of patients in two groups in 1 month after treatment, the Scandinavia (SSS) score in 3 weeks and 6 weeks after treatment, and the quality of life score and survival and re-bleeding condition after treatment in 3 months and 6 months. Results Compared with the control group, the GOS excellent rate in the observation group in 1 month after treatment was 77.50% which increased significantly (P<0.05); the SSS score in the observation group in 3 weeks and 6 weeks after treatment was significantly lower than that in the control group (P<0.01); The quality of life score in the observation group in 3 months and 6 months after treatment was significantly higher than that in the control group (P<0.01); There was statistically significant difference in survival rate between the two groups after treatment (P<0.05), and the re-bleeding rate showed no significant difference (P>0.05). Conclusion The curative effects of microsurgical treatment with small bone flap craniotomy on patients with hypertensive cerebral hemorrhage is significant, which can improve the patients' neurological function, the life quality and survival rate, thus it is worthy of clinical promotion.