Abstract: Mining and driving activity of 6 couples of mines in Xuzhou Mining Field are being done under ground over 1000 meters and depths of roadways are large.Top arch distortion and floor heave occurred due to distinct underground pressure.Dense bolt supporting test was made at top arch of rock roadway with large section.This is a new method for controlling distortion of deep rock roadway and it preferably settled distortion problem during roadway constructing and repairing.