Quality evaluation method of stereo image plays an important role in image compression , processing and communications, and objective quality evaluation method of stereo imagedepends on the subjective evaluation. Based on the characteristics of the human eye stereo vision,a new subjective evaluation is proposed. In this paper, six aspects in details are described: building stereo image library, the choice of evaluators,description of experimentcondition, training and testing evaluators, dataprocessing and analysis of experiment result. The experiments results are the scores of stereo image, which can be assessed by different evaluators and processed by the theory of mathematical statistics. The resultsuggests that subjective quality evaluation method isreasonable and can state stereo image quality accurately.