Abstract: With the widespread implementation of roof cutting and pressure relief technology in deep mining,the problem of roof surrounding rock stability of roof cutting roadway has become increasingly prominent due to the high mining-induced stress and the weak coal and roof rock.This is especially true for thick coal seam and thick mudstone.In this paper,a case study was performed to analyze the mining instability characteristics of thick coal roof cutting roadway.A ground control measure of thick coal roof cutting roadway with single hydraulic pillar support as the bearing structure was proposed.A bearing mechanical model of single pillar roof was constructed.The results show that the failure and instability of the roadway roof are aggravated under the influence of advanced mining,and the support effect of the rock bolts and cables is limited due to the conditions of thick coal roof.Therefore,passivesupport becomes the key to the stability control of roof cutting roadway.It was found that the wider the roadway is,the greater the bearing load of the roof support is,and the more the number of single columns is,the more conducive it is for the passive support to share the roof pressure.The closer the single column arrangement is to the middle of the roadway roof,the higher the control efficiency of the passive support is.The reasonable arrangement can realize the ground control of the roof cutting roadway under the influence of advanced mining.The rationality of support design is proved by numerical simulation and engineering practice.