1. A memory access method for parallel computing is applied in the case that n≧2 parallel threads call the same original execution module, characterized in that it comprises the steps of: S 1 ) determining the number k of mirror execution modules needed to be created based on the number n of threads, wherein n−1≧k≧1; S 2 ) determining the mapping policy F between the n threads and the execution modules including the original execution module as well as the k mirror execution modules; S 3 ) creating k mirror execution modules, and allocating private memory pool to each of them respectively; S 4 ) executing the n parallel threads, and making each thread call the execution module according to the mapping policy F, wherein each execution module only access its private memory pool; S 5 ) deleting the created mirror execution modules after the thread operation is finished, and releasing the resources.