Abstract: Aiming at the problems that privacy protection might face in complex social situations, the author proposed a noncryptic privacy protection algorithm. The algorithm abstracted complex social scene into multiple attribute correlation model, through the separation way of the correlation attributes，  the attributes combination of correlation privacy were separated and stored in different blocks of data to solve the problem of data privacy protection. At the same time, in order to guarantee the efficiency of data refactoring, the author also proposed a combined correlation attributes separation algorithm, which achieved the maximum optimization between privacy protection and utilization efficiency of the data.

Key words: privacy attribute, combined privacy, privacy protection, data block