Abstract: This study aims to explore an efficient excavation and support technology system applicable to complex geological conditions. Based on an analysis of the mechanical properties of roadway surrounding rock, a composite support structure consisting of "bolts-cables-steel strips-wire mesh" was designed. An excavation scheme combining the bolter-miner integrated construction process with a continuous transport system was adopted. A mine pressure monitoring and information-based feedback mechanism was established, along with a "long-pressure short-extraction" hybrid ventilation and dust control technology. Engineering application shows that roadway deformation is controlled within allowable limits, and the anchoring force of all bolts exceeds the design requirements. The average monthly footage reached 286 m, an increase of 58.9% compared to pre-improvement levels; support costs were reduced by 33.1%; the roof accident rate at the working face dropped by 82.1%; the number of gas over-limit incidents decreased by 84.6%; and dust concentration was reduced by 71.9%. The results indicate that, in response to excavation challenges under complex geological conditions, a systematic technology integration scheme can effectively address issues such as roof fracturing and complex hydrogeology, achieving safe and efficient excavation.