Abstract:China Regional Chronostratigraphic (Geo-chronologic) Scale which attached to China Stratigraphic Guide was put forward by several subcommissions in dating group meeting held by second national stratigraphic committee in December, 1999, then it was collected and finished by China Stratigraphic Committee. In May, 2000, it was discussed and approved by representatives in Third China Stratigraphic Meeting and published formally after approval of Department of Land and Resources. During the period of 31th International Geological Meeting held in 2000, newly International Stratigraphic Scale was issued by International Geological and Scientific Union, and was collected into China Stratigraphic Guide of 2001 revising edition. Newly edition of International Stratigraphic Scale revised in 2002 reflects recent developments of the study on stratigraphic units.