Abstract: Aiming at the problems that the relationship between the layout parameters of gas pre-drainage borehole along seam in the face of outburst thin coal seam in Songzao Coal Mine and the time of drainage standard is not clear, it is difficult to adapt to the requirements of mining alternative in the mine and the amount of borehole engineering is waste, this paper analyzes the influence of different drilling layout parameters on the time of drainage standard, and formulates the field investigation scheme of the time of drainage standard, and carries out the field investigation test at 2215-2 working face. The test results show that reducing the distance between drilling holes can effectively shorten the time of drainage standard, the diameter of drilling holes is 65 mm, the distance between drilling holes is reduced from 5 m to 3 m, the amount of drilling holes in tons of coal is increased by 70%, and the time of drainage standard is shortened from 71 days to 32 days and simultaneously increasing the diameter of drilling holes and the distance between drilling holes will increase the time of drainage standard, the diameter of drilling holes is increased fromφ65 mm to φ87 mm, the distance between drilling holes is increased from 5 m to 8 m, and the amount of drilling holes in tons of coal is reduced by 40%, and the time of drainage standard is increased from 71 days to 93 days.