Objective To analyse the changes in parameters such as center of pressure area (COPA) and center of pressure speed (COPS) between the early post-operative period and 1year after anterior cruciate ligament reconstruction (ACLR) in patients under the influence of visual factors. Methods 17 patients with ACLR were included and tested for data such as COPA and COPS in the early postoperative period and 1 year after surgery, and 17 healthy subjects were matched as the normal group. The standing balance test with different visual states of open and closed eyes was performed and correlation analysis was performed for each measurement state. Results ①The difference between the groups was statistically significant (P＜0.05) when standing on the healthy side, and the difference between the groups was not statistically significant (P＞0.05) when standing on the injured side. ②When standing with eyes open, COPA was higher in the long-trem group than in the short-time and normal group (P＜0.01). ③When standing with eyes closed on the healthy side, COPA was higher in the short-term and long-term groups than the normal group (P＜0.01). ④The difference was statistically significant when comparing COPS between the normal and short-term group, and between the normal and long-term group (P＜0.01). ⑤In double feet standing, the short-term group had less COPA and COPS with eyes open than with eyes closed, and the difference was statistically significant (P＜0.05). COPS was less in the long-term group with eyes open than with eyes closed, which was statistically different (P=0.000). ⑥Positive correlations were found between eye opening and closing on two feet standing, between injured side and two feet standing with eyes opening, between healthy side and injured side standing with eyes opening, and between healthy side and injured side standing with eyes closing on both COPA and COPS. Conclusion The analyze of data related to the center of pressure in the standing position in patients with ACLR revealed that vision has an important influence on postural stability control. Patients showed greater fluctuated in stability in double and single feet standing compared to normal people at 1 year postoperatively. It suggests to strengthen the patients long-term postoperative training to consolidate the rehabilitation effect.