In the eastern Central Asian orogenic belt (CAOB), there are several micro- continents with Precambrian basement (e.g., Erguna, Xing’an, Songnen and Jiamusi blocks), where a large number of Proterozoic geological records occurred, including 2. 5~2. 4 Ga, 1. 8 Ga, 1. 5~1. 4 Ga, 0. 9~0. 6 Ga magmatic events and Meso—Neoproterozoic sedimentary sequences. They are the key objects to answer the evolutionary relationship between micro- continents and the Columbia and Rodinia supercontinents and the evolution of the Earth’s middle age. The Erguna, Xing’an and Songnen blocks have similar 2. 5~1. 8 Ga basement rocks and lack of ancient ophiolite, which may constitute a combined continental block. The ancient nuclear of the block was formed at least before 2. 7 Ga. This combined block likely breakup from and evolved on the periphery of the northern North China Craton. The block underwent oceanic slab subduction at 2. 5 Ga and 1. 8 Ga, and did not participate in the cratonization. The 1. 87~1. 80 Ga magmatism was probably formed by the peripheral subduction along the edge of Columbia supercontinent beneath the ancient micro- continents. The 1. 45~1. 32 Ga A- type granite—rhyolite assemblage in western Xing’an Block and Baicaimiao arc belt, and the continuously depeleted trend of Hf isotope to continental margin, are remarkably similar to that in Granite—Rhyolite Province in southern Laurentian, and Fennoscandia in southwestern Baltic Craton. It may be generated by retreating subduction on the periphery of the Columbia supercontinent. Retreating subduction and mantle upwelling beneath supercontinent jointly promoted the extension and breakup of the Columbia supercontinent. The western Xing’an Block developed similar rock assemblages, detrital zircon ages and Hf isotope changes, to the syn- and post- collision sedimentary sequences related to the Grenville orogeny. Moreover, the systematic changes of detrital zircon trace elements and Hf isotopes over time also reveal that the crust thickened significantly from 1. 10 to 0. 98 Ga, accompanied by dominant partial melting of ancient crustal materials, whereas during 0. 9~0. 8 Ga crust continued to thin, mainly with reworking of ancient crustal material. These two stages were basically consistent with the Grenville orogeny (1080~980 Ma) and subsequent post- collisional collapse extension. The 954 Ma syenogranites in the northeastern Songnen Block was probably the product of partial melting of sedimentary rocks in the post- collisional extension associated with the collision between Songnen and Jimusi blocks, which may represent the response of the Rodinia assembly in the eastern CAOB. The advancing subduction along the periphery of the Rodinia supercontinent led to the collision collage between the Jimusi block and the Songnen—Xing’an—Erguna combined block before 954 Ma. Meanwhile, the advancing subduction also generated middle- to high- K calc- alkaline basaltic—intermediate—felsic rock assemblage in the outerboard Jimusi Block at 953~939 Ma, and formed extensive intermediate—felsic calc-alkaline magmatism in the inborad blocks at 920~880 Ma. From 850 Ma, the retreating subduction resulted in voluminous high- temperature calc- alkaline felsic rocks and bimodal magmatic rock assemblage produced on the Songnen and Erguna blocks. The joint block began to breakup continuously leading to the opening of the Paleo Mudanjiang Ocean and Paleo Xinlin Ocean at last before 777 Ma and 697 Ma, respectively. Additionally, passive continental margins developed on the northwestern Erguna Block and the eastern Songnen Block during 790~560 Ma. These magmatism and sedimentation recorded the assembly, extension to breakup of the Rodinia supercontinent in eastern CAOB. Besides, a large number of 1. 5~1. 3 Ga and 1. 0~0. 7 Ga "valley" geological records have been newly identified in the eastern CAOB and other blocks worldwide, which were related to the assembly, extension to breakup of the supercontinents, suggesting that the Earth’s middle age was not the tectonic calm period as previously thought.