Abstract: A new LSB steganography method is proposed. According to the parity of carrier's image pixel tobe embedded and the content of embedded information, the embedded way of the pixel adding 1 or 2 is chosen tomake the hypothesis of SPA (sample pair analysis) attack keep balance before or after the embedding, causing SPAattack disable. When the proposed algorithm is used to make the embedding rate reaching 100%, the estimatedvalue of the SPA attack is still smaller than judge threshold. Experimental results validate that the new method notonly can resist the SPA attack, but also can resist the test such as RS. The embedding mode of new method isconvenient to achieve without additional disposal after embedding.