The invention provides a compressing energy recycling system for a hydrogen production and energy storage system. The compressing energy recycling system comprises a high-pressure hydrogen/oxygen storing tank, a high-pressure gas conveying pipeline, a low-pressure hydrogen/oxygen input pipeline, a low-pressure hydrogen/oxygen output pipeline, a multi-stage pressure reducing/increasing system, a power generation motor and a transmission shaft. The multi-stage pressure reducing/increasing system comprises a compressing pump. The high-pressure hydrogen/oxygen storing tank communicates with the high-pressure gas conveying pipeline. A high-pressure gas pipeline is provided with the multi-stage pressure reducing/increasing system. The high-pressure gas pipeline is provided with the low-pressurehydrogen/oxygen input pipeline and the low-pressure hydrogen/oxygen output pipeline which communicate. The multi-stage pressure reducing/increasing system is located between the high-pressure hydrogen/oxygen storing tank and the low-pressure hydrogen/oxygen input pipeline. The low-pressure hydrogen/oxygen input pipeline is closer to the high-pressure hydrogen/oxygen storing tank than the low-pressure hydrogen/oxygen output pipeline. The compressing pump is connected with the power generation motor through the transmission shaft. The system can achieve compressing energy power generation, and the energy utilization efficiency of the hydrogen production and energy storage system can be improved.