Parallel confocal microscopy,which can detect lots of measured points simultaneously,can provide better efficiency in measurement,but bring larger off-axis aberration into the system.The horizontal offset of off-axis facula cannot be eliminated by existing data processing method,so centre-proliferation method and optic-intensity restructuring method are brought up to obtain optic-intensity displacement curves.Experimental results show that the method of centre-proliferation and optic-intensity restructuring can remove horizontal offset of about 10 μm of off-axis facula.In contrast to exiting method,the system′s stability has been increased by 2 and 5 times by these two kinds of methods,which can fit the high-precision requirement in rapid measurement.