Abstract: The studied progress on basement property of Junggar basin is briefly introduced. Based on available information about various terrains, structures and deep geophysical explorations, with geographic information software (GIS)and GOCAD 3D modeling software, the translayer phenomena existed in geo-structural data in Junggar basin are corrected, and the sequence-structure model is developed. Moreover, according to the contact relationship between the folded basement and the cap rocks in the basin, the primary model for the folded basement is given, and constrained and corrected using the deep geophysical prospecting data, followed by providing a recent and valuable folded basement model for study of the cap rocks and basement structures in Junggar basin.

Key words: Junggar basin, basement, 3D model