Abstract：According to the manner of engineering geology，the texture plane is described with vector in the natural coordinate system. The intersecting relation of the sampling windows with the texture plane is studied. The local coordinate system is set up on sampling windows and the transition group of the vectors describing texture plane in two kinds of coordinate systems is deduced. The occurrence parameters of texture plane are back calculated from the intersection angles of the sampling line and texture plane traces in the sampling windows on the basis of the relation and peculiarity of group by least square method. This method requires a few site data and is easy to operate and simple to be applied to engineering practice.
