Abstract: There are many faults in Zhadu Mining Area.The ma in coal beds are badly destroyed by the slip faults near them.Because the coal bed in different positi on of slip fault has different destroyed result,it also has different dynamical metamorphism degree and inner structure.So by X radial diffraction analyze of co al from three main parts of slip fault,we can get the variation law of three par ameters:d(002),L_c,L_a.It will pro vide a new approach to study slip fault or other similar faults in the future.