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为给矿井巷道掘进创造良好条件并提升综掘机喷雾降尘效果，分析矿井使用的 EBZ260 综掘机喷雾系统现场应用中存在问题，再对喷雾系统有针对的改造，并进行现场应用。结果表明，对喷雾降尘系统水质改善后可避免喷嘴或者供水管路出现堵塞问题；在综掘机上增加高压喷雾泵可提升喷雾系统供水压力，且喷雾泵可与综掘机运行联动，具有较高的自动化水平；对喷雾结构改造后可以提升喷雾效果，也可降低截割齿更换使用量。成果为其他矿井综掘机喷雾降尘系统针对性改进提供参考借鉴。“,”In order to create good conditions for mine roadway excavation and improve the spray dust removal effect of comprehensive excavator, the problems existing in the field application of EBZ260 comprehensive excavator spray system in mine were analyzed, and then the spray system was modified and applied in the field.The results show that the blockage of nozzles or water supply pipelines can be avoided after improving the water quality of the spray dust removal system. The water supply pressure of the spray system can be increased by adding a high pressure spray pump to the comprehensive excavator, and the spray pump can be linked with the comprehensive excavator, which has a high level of automation. The modification of the spray structure can improve the spray effect and reduce the usage of cutting teeth replacement. The results provide reference for the improvement of spray dust removal system of other mine comprehensive excavators.