Based on hard support of roadway affected by fault, No.9 coal seam transportation roadway of a mine was taken as an example to study migration mechanism and supporting technology of roadway surrounding rock with research means of field investigation, theoretical analysis, FLAC numerical simulation and practical application. It was clear that under fault influence, the difference of stress characteristics of roadway surrounding was obvious. Different support schemes were used in different key supporting areas; The combined support technology of roadway bolt ( cable ) obviously improved overall carrying capacity of roadway surrounding rock comparing. As a result, the application results showed that this technique could effectively support surrounding rock of roadway in fault area.