The secrete information may be revealed when use information hiding technology with the same image. Aimed to solve this problem

has proposed a new information hiding algorithm. At first

has analyzed hiding different information two times in the identical image. According to it

has established a set of guessing key algorithm based on the probability statistical theory

thus possible to withdraw the information which hidden. Based on this

has designed one hiding algorithm based on the random multi-storage location information

this algorithm makes the improvement in information hiding position

causes the aggressor to be unable to establish the effective probability statistical model

thus achieves that enhancing the algorithm intensity. In the paper elaborated in detail the information embedded in multiposition

and has analyzed the algorithm anti-attack performance in quota.