This paper briefly introduces the basic situation of Tarahao Mine,with a focus on optimizing the design from eight aspects: industrial site selection, terrain utilization, development methods, shaft support, auxiliary transportation, roadway layout, permanent magnet motor application, and working face production. Three innovative points have been extracted, including one drilling hole for cutting into multi-layer tunnels, the application of an integrated excavation anchor machine for soft rock, and support along the channel. Summarize the ways and determining parameters for improving the production capacity of three soft strata mines. It also provides valuable experience for the construction and optimization design of similar mines in the future.