The invention relates to the field of data communication, in particular to a multi-data-source integrated data communication system and method, and the system comprises an application end, a communication module, a plurality of data source kernel service modules, a plurality of drive modules, and a plurality of data sources. The application end is used for sending a data access request instruction, and the communication module is used for being connected with the corresponding data source kernel service module according to the data access request instruction; the data source kernel service module is used for establishing connection with the corresponding driving module according to the data access request instruction, sending the data access request instruction to the corresponding drivingmodule and sending data returned by the driving module to the communication module; the driving module is used for establishing connection with a corresponding data source according to the data access request instruction; the data source is used for data storage. According to the invention, data access of different data sources by the application terminal is realized.