Objective To construct a perioperative enteral nutrition management programme for patients with intracranial aneurysml subarachnoid hemorrhage and to explore the positive effect of enteral nutrition programme on improving the nutritional status and condition of patients with intracranial aneurysml subarachnoid hemorrhage. Method A total of 96 patients with intracranial aneurysm rupture subarachnoid hemorrhage admitted to the First Affiliated Hospital of Anhui Medical University from January 2020 to December 2024 were selected by convenient sampling. As the investigation objects of this study the investigation objects were divided into intervention group and control group by block group combined with random number table method with 48 persons in each group. The control group received conventional treatment and nursing and the intervention group received enteral nutrition on the basis of the control group. Result The constructed enteral nutrition programme for perioperative patients with intracranial aneurysml subarachnoid hemorrhage included a total of 4 primary indicators 12 secondary indicators and 31 tertiary indicators all with a grade of evidence of B and above. 2 patients one in the intervention group and one in the control group were automatically discharged from the hospital due to postoperative changes in their condition and a total of 94 patients completed the trial with ages ranging from 35 to 84 years old averaging 50. 66±7. 95 years old 30 31. 91% males and 64 68. 09% females and there was no difference in the baseline data of the patients in the two groups P>0. 05 after the implementation of enteral nutritional regimen the intervention the nutritional risk screening 2002 score of the intervention group was significantly lower than that of the control group the nutritional indicators total protein albumin hemoglobin of the patients in the intervention group were significantly higher than that of the control group the feeding intolerance of the patients in the intervention group was significantly lower than that of the control group the nutritional attainment of the standard was significantly higher than that of the control group and the results of the APACHE Ⅱ score of the patients in the intervention group were comparatively significantly lower than that of the control group and the differences were all statistically significant P < 0. 05 . Conclusion The construction of a perioperative enteral nutrition programme for patients with intracranial aneurysml subarachnoid hemorrhage is conducive to improving patients nutritional indicators reducing perioperative nutritional risk reducing the occurrence of feeding intolerance improving nutritional compliance and improving patients disease development.