Abstract:Physical indicators and collapsible of loess was tested in binxian county of Shanxi Province. Physical properties indicators and collapsible vertical distribution law have been investigated in this region. According to distribution characteristics and using mathematical statistics method, key factors of collapsibility have been studied. Fitting the corresponding empirical formula, some characteristics of loess in the region have been further summarized. It will provide some references for the loess research and engineering survey and design.