The policy of store and retrieve for large-scale multidimensional dataset was researched.The multidimensional dataset was allocated in the multi-disks among the distributed processing system by using the parallel I/O technology.A new multidimensional data cyclic declustering policy was proposed aiming to data retrieve based on scope by extending existing cyclic policy to multidimensional dataset from adapting to two-dimension

and by using theory analysis on the present method

a new heuristic multidimensional data retrieve policy named HPPHM was proposed.The experimental result has demonstrated the efficiency of new strategy not only in parallel degree but also in robust.