AIM:To discuss the influences of different body postures on intraocular pressure(IOP) of patients with glaucoma. METHODS:Hospitalized patients with primary open-angle, angle-closure glaucoma and normal IOP were selected 30 cases each preoperatively, their IOPs of sitting, Fowler position, supine position, lateral position, and prone position were measured.The relationship between 30 cases of hospitalized patients with increased IOP and their position was observed.  RESULTS:Three groups on different positions at different time points were all measured with the highest mean IOP values as lying. On lateral position the IOP of eye of low side was higher than that of high side. Of pairwise comparisons,the IOP differences between Fowler postion and sitting, supine and prone position were not significant (P＞0.05). IOP differences among sitting, Fowler position and a variety of lying positions were statistically significant（P＜0.05）. The lateral position in 30 patients with increased IOP mainly accounted for 70%. Patients were forced to sit instead of lying. CONCLUSION:To better control IOP, glaucoma patients should take the head in higher position and avoid lateral position of affected eyes.