Abstract: Fast spatial query is the foundation of the mass ZY1 -02C data application. In the traditional spatial query structure using relational database,frequent disk I/Os and data swaps degrade the query performance a lot. In contrast, main memory database which is completely based on the memory can significantly improve the searching efficiency. In this study, a vector data storage and R - tree indexing structure was designed and implemented based on the Redis database,which is a main memory database of Key-Value type. This structure was used in practice and the efficiency of spatial query was improved.