GIS-based methods have been used for coal mine, but the efficient management of spatial data still asks for further development. On the one hand, the unified storage of spatial data and attribute data, data consistency, and multi-user processing cannot be fulfilled by the file storage method. On the other hand, the common spatial data engine is inaccessible due to the complexity and specificity of coal mine spatial data. Accordingly, this paper presents a spatial data engine to solve the challenge in the management and storage of coal mine spatial data.%在煤矿地理信息系统中，现有的文件存储方式无法实现空间数据和属性数据的统一存储，难以保持数据一致性，不支持多用户并发处理，空间数据管理的效率有待提高。另外，由于煤矿空间数据的复杂性和特殊性，普通空间数据引擎难以应用。为此，本文提出了一种煤矿地理信息系统空间数据引擎，以解决煤矿空间数据的管理和存储问题。最后，结合试验验证了该引擎的可行性与有效性。
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