Load balancing system for database servers

The invention relates to a load balancing system for database servers.The load balancing system comprises a server cluster composed of the database servers; one database server in the server cluster is selected as a data reading server, and the other database servers in the server cluster serve as data writing servers; databases needing to be processed are partitioned, obtained corresponding database partitions are stored in the corresponding data writing servers, and data to be written is written into the database partitions of the corresponding data writing servers through the data reading server; after the data to be written is written into the database partitions of the corresponding data writing servers, all the database servers in the server cluster are synchronized in real time, so that all the database servers in the server cluster store the databases with the same data content.The load balancing system for the database servers is compact in structure, capable of effectively reducing the load of the database servers, increasing the handling capacity of the database servers and improving the operating efficiency, safe and reliable.