Aiming at some weakness of the old LC adaptive optics system for human retinal imaging,a new design scheme is presented.The new system can obtain high-spacial-resolution retinal image for eye under different diopters.The pupil-monitoring system,imaging-orientation system are adopted to avoid stray light,which can make sure the precision of orientation and detection.The research results show that the new system is more convenient,more flexible and suitable for widely application and extension.