Abstract: Based on engineering practice of 162302 transport tunnel in xinji mining, the deformation character of tunnel sides and roof was analyzed by engineering test.The conclusion were drawn that the plastic deformation was obvious instability in tunnel sides and instability interlayer separation in middle of construction surface. the bolts were applied in middle of tunnel sides to keep plastic deformation stability and pre-stress anchor was applied in middle of tunnel roof to keep loose coal interlayer stability and conduit was layered in 2.0~2.5m limits of shallow loose coal to keep anchor successful installation.