The invention provides a binary image steganography method based on disturbance distortion and pixel selection, which is characterized in that a distortion condition brought about by pixel overturn of a binary image is calculated according to a more appropriate disturbance measurement method, secret information is embedded through STC encoding, the embedding capacity of the secret information is improved, a secret carrying image is acquired, post-processing is performed on the secret carrying image according to a pixel selection strategy, and a binary steganographic image used for channel transmission is acquired. The binary steganographic image acquired according to the invention is higher in visual quality and higher in safety and anti-detection capacity compared with previous methods. The invention further provides a post-processing strategy for pixel selection in consideration of mutual influences existing between turnover pixels, and a safer binary steganographic image with higher visual quality is acquired. The binary image steganography method can be used for the information security and especially for the aspect of binary image secret information transmission.