Abstract: This paper proposes an anti-cropping steganography scheme based on Latin square.At first,the amount of secret copies is obtained by the cover image's hiding capacity and the length of the secret message.According to the amount of copies,a Latin square is confirmed as the template for hiding secret message.The secret message is divided into groups and each group is numbered.Then the secret groups are embedded into the cover image with the corresponding element in the Latin square.Experimental results indicate that the proposed scheme can achieve high capacity,and can be against the cropping attack.It has significant practical value for information security.