Objectives:In order to solve the problem of the difference in physical properties and oil- bearing of sandstone reservoirs in the Lower Jurassic Sangonghe Formation in the three areas of Shawodi, Moxizhuang and Zhengshacun in the abdomen of Junggar Basin. Methods:Based on the physical property data and mercury intrusion data, the spatial characteristics, porosity and permeability characteristics and pore throat structure characteristics of the Sangonghe Formation in the study area were analyzed in detail with scanning electron microscope analysis.The study of diagenetic characteristics and other methods explored the main controlling factors restricting the relationship between the physical properties of the Sangonghe Formation in the study area and the oil- bearing properties. Results:The primary pores with medium and coarse pore throats and finer pore throats are the main ones; the Zhengshacun community is buried deeper, and is characterized by secondary pores and cracks with fine pore throats and micro- pore throats. Conclusions: The study concluded that the burial depth is the main factor affecting the development of the reservoir; the sedimentary microfacies and the genetic type of sand bodies are the basis for controlling the development of the reservoir; the low geothermal gradient is delayed the compaction effect and effectively preserved the primary pores; the content of plastic cuttings, the barriers and interlayers of the reservoir, and diagenetic factors, that is, the heterogeneity of the reservoir affects the reservoir performance of the sand body to a certain extent.