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本文所述全国地层数据库是在省级地层数据库的基础上，通过地层分级存储多元组合，采用ＰＣ机和９０年代软件，运用ＯｂｊｅｃｔＷｉｎｄｏｗｓ程序设计、文件流等一系列技术方法而建立。解决了全国地层清理主要成果卡片的定量和定性数据的录入及完整地层单位卡片的输出。实现了按断代、地层大区、省（市、区）的岩石地层单位同名、代号及新建单位有效性的监控及文献检索；同时能够生成以上有关的图形和表格。全国地层数据库建成后，将存有正式岩石地层单位５０００多个，建议废弃地层单位７８００个、各种类型层型剖面２００００多条。
The national stratum database described in this paper is based on the provincial stratum database, and is constructed by a series of technical methods such as PC and 90’s software, ObjectWindows program design, file flow and so on. Solves the input of quantitative and qualitative data of cardinal achievement cards of stratigraphic cleaning and the output of complete stratigraphic unit cards. It realizes the monitoring and document retrieval of the validity of the rock formations of the same name, code and new establishment according to the age of the dynasties, stratigraphic zones, provinces (cities and districts); at the same time, the above figures and tables can be generated. After the completion of the national stratum database, there will be more than 5,000 formal stratigraphic units. It is proposed that 7800 stratum units be discarded and more than 20,000 stratigraphic sections of various types be proposed.