Aiming at the influence of compression and transmission on the degradation damage of stereo videos, a reasonable data processing method is designed based on the evaluation data obtained from lots of subjective evaluation experiments, and then the final processed results are analyzed. The method includes three aspects: weeding out abnormal cases, removing abnormal values and averaging values. The experimental results show that this method is obviously better than the traditional Grubbs test. The data of stereo videos processed by the H.264 compression algorithm are analyzed by the method above, and the conclusions are drawn: the quantization parameter (QP) affects the damage degree of video quality; information carried by the reference viewpoint takes a more dominant place; high- resolution videos contribute to the compensation of degradation; the ability of females to accept visual impairment is stronger than that of males. The conclusions provide technical support for the communication technology optimization of stereo videos.