Abstract: In order to develop the reasonable supporting technology of gateway in the soft rock stratum, based on the geological characteristics of the soft rock stratum and the present situation of the construction of Wu jianfang coal mine of China resources coal holdings corporation limited, by the specimen physical mechanics parameter test of the roof and floor strata rock which drilled or cutted on the scene of the each coal seam, the geological radar detection and analysis of the surrounding rock loose state, the choice of shape section of gateway and supporting structure forms, design of supporting parameters of gateway under the condition of more than 7.0m thick coal seam, the numerical simulation analysis of composite support structure and parameters optimization.The reasonable supporting structures of the gateway were obtained. Further study on the development of rational roadway support technique of gateway in the soft rock of Wu jianfang coal mine has certain reference significance.