Abstract: An intensive study of Precambrian strata of the Jiaobei terrane is of great significance forsolving the problems on geological evolution,tectonic framework and mineralization,The au-thors hold that the Jiaodong Group can be dismembered into three units:the strata older than2500 Ma are the first-phase greenstone,those ranging in age from 2500 to 2300 Ma are the sec-ond-phase greenstone,and those from 2300 to 1850 Ma are khondalite. It is advisable that Sini-an be still applied for the age of the Penglai Group before enough evidence is obtained to negatethis age. Based on the above-mentioned stratigraphic sequences,the Precambrian tectonicframework of the Jiaobei terrane can be described as an onion-shaped structure with the meta-morphic core composed of the Jiaobei and Qishan Groups as the center surrounded by the Fen-zishan Group.