Based on the consolidated finite layer theory, the analysis method of the nonlinear interaction on pile group-soil-raft considering soil consolidation is built in the study. And the corresponding computing program CPRI, which simulates the whole consolidation procedure by the nonlinear interaction and provides the variation of the displacement, pore pressure, resultant force of pile head and the soil counterforce at different time, is developed. At the same time, the flow chart of main program and pile-soil-raft system subroutine are presented. Through the test of the computing example compared with the program PRI, the correctness of the program is proved.