The invention relates to an open-type multi-source data collection system and method. The system comprises a task management module, a task execution module and a data storage module, wherein the task management module is used for creating a collection task as needed, configuring collection task information and generating a corresponding data collection interface rule, the task execution module is used for loading the data collection interface rule, executing the collection task in the activated state, conducting data source monitoring and data collection on the corresponding collection mask, packaging the collected data according to a unified format, and sending the packaged data to the data storage module, and the data storage module is used for storing data output by a data output module. According to the open-type multi-source data collection system and method, comprehensive data source collection types are covered, current universal data collection modes are supported, dynamic extension of a data collection interface and simultaneous collection of multiple data sources are supported, and when a new data source has access to the system, data collection carried out on the new data source can be easily achieved only by configuring the data collection task information without the deployment of a collection agency and a data mode conversion tool.