Aiming at difficult support problem of soft coal roadway affected by mining excavation, the extent of excavation damage zone was measured with PHD-2loose zone tester for return airway in 6107N coal face by adopting support theory based on excavation damage zone. Two kinds of bolting support scheme were made. All of the support schemes were analyzed by UDEC3.0. By comparative analysis of numerical simulation result, scheme II was the best one. The monitoring data show that wall rock deformation has been effectively controlled, which can provide some technical references for support designs of soft coal roadway affected by mining excavation.