Paleomagnetic measurements demonstrate that the Jijiagou section which is the stratotype one of Baode Stage of the Neogene in China records 12 normal and 11 reversed polarity zones.

古地磁明,中国新近系保德阶界线层型,山西保德冀家沟剖面记12个正极性段与11个负极性段。

This paper indicates the reasons of establish member and introduces its origin and stratotype section, as well as its extend and correlation.At last, its geological age is discussed.

文中阐述建段的理由，介称来源、层型剖面、地层的延伸与对比，讨论地质时代。