The authors have studied basalts from the Jiangling hollow systematically using the methods of petrology，petrochemistry，geochemistry，isotope geology，isotope geochronology．The basalts are characterized by the depletion of K20 and the enrichment of Ti02，light REE and they are LILE and the high values of(La／Lu)N and(La／Yb)N；they are tO continental rift basin tholeiites．