The Early Cretaceous relict basins in eastern Heilongjiang Province were filled with the Didao(Peide)Formation，Chengzihe(Qihulin and Yunshan) and Muling(Zhushan)formations and Dongshan Formation from the bottom to the top. The sedimentary facies are dominated by the alluvial fan，(fan)delta,lacustrine facies，marine facies etc. The sedimentary facies analyses indicate that the Didao Formation is mainly composed of alluvial fan and(fan)delta coarsegrained clastic deposits，with intercalation of  volcanic rocks，which shows the sedimentary environment characteristics for early stage of rifting. During the deposition of the Chengzihe(Qihulin and Yunshan)and Muling(Zhushan)formations，the basins were sagging and the presentday relict Sanjiang，Boli，Jixi，Hulin，Ningan and Hegang basins as well as the  Tangyuan faulted Depression formed a uniform neritic depressional basin. The Zhangguangcailing MountainXiaoxinganling Mountain，Dongsanjiang and Wandashan areas are the primary provenances and(fan)deltashallow lakesemilakelacustrine bottom fan facies were mainly developed with several episodes of transgression which were dominantly from the eastern Hulin Basin and the northern Suibin Depression.During the deposition of the Dongshan Formation，the basin obviously shrank and local(fan)deltashallow lake sedimentary facies were developed.