Abstract: In order to solve the potential safety hazards, waste of space resources and energy reserve safety caused by the abandoned open-pit pits in China, a new model for comprehensive utilization of abandoned open-pit pits is explored, and a comprehensive utilization direction of pumped storage and oil storage at the bottom of open-pit pits is proposed.The detailed process and key projects of the process are systematically explained.Energy is transferred and stored through the pumped storage power station.Oil is stored at the bottom of the pit, and the upper water and earth-rock mixture are used to ensure oil storage safety.The engineering exploration is conducted with the Fushun west open-pit mine in Liaoning province as the engineering background.The results show that the pumped-storage and integrated storage utilization methods can achieve 40 million tons of oil storage in open-pit mines, with theoretical continuous power generation of 4.08×10⁷ kW·h, satisfying regional fossils energy security reserves and power peak cuts fill valleys.The scheme realizes the full utilization of open pit space and improves the safety of the oil storage system, and the application prospect is huge.