Based on poor ventilation in Shoushan No. 1 Mine, combined with the long-term development of the mine, respectively from two aspects of intake and return air system retrofit scheme was proposed, the advantages and disadvantages of each scheme were analyzed comprehensively, the implementation of the overall design, the installment construction principle were settled, which reduced the initial investment, ensured the mine production safety, reached mine producing target and task, laid a foundation for sustainable development of coal mine safety.