The invention provides a gas-field gas well arrangement method and device. The method comprises the steps that geological parameter information and trial-production dynamic information of a gas field to be developed are obtained, and the gas field grade which the gas field to be developed belongs to is determined according to the geological parameter information and trial-production dynamic information of the gas field to be developed; according to the gas field grade, the gas well spacing of the gas field to be developed is determined from a gas-field gas well comparison table, and multiple pairs of gas field grades and the gas well spacing which are in one to one correspondence relationship are stored in the gas-field gas well comparison table; a gas well layout of the gas field to be developed is obtained according to the gas well spacing of the gas field to be developed. According to the gas-field gas well arrangement method and device, the gas well spacing of the gas field to be developed is determined from the existing gas-field gas well comparison table, the gas well layout of the gas field to be developed is obtained, the early-stage well arrangement cost is reduced, the building and producing time is reduced, and the exploitation efficiency is improved.