By using earthquake catalog data recorded by instrument since 1970, the dividing stage characteristics of strain accumulating and releasing around Ordos block and stain state in which were studied in the paper on the basis of strain accumulating and releasing model. The result showed that the strain accumulating and releasing had obvious stage characteristics of two phases, and the boundary was about A. D 2000. Now the periphery of Ordos block and its northern margin、eastern margin and western margin are in strain accumulating status, and all the strain accumulating time has been more than 10 years. The strain releasing phase would come. The most intense area of strain releasing would be in the northern margin, and the eastern margin and western margin will be the next-intense areas, where the intensity of releasing strain will be equal to that of about M_s6.5 and M_s6.0 earthquakes. The southern margin would be still in undulating stage of the strain accumulating and releasing.