1. A data merging method for distributed computing, the method comprising: providing a configuration file to a data merging server, wherein the configuration file is set up according to task splitting condition of distributed computing; creating by the data merging server a database table according to the configuration file; inserting into the database table a distributed computational result data received from a distributed node after the distributed node has completed a respective distributed computing task; and merging data in the database table by the data merging server.