A method and device for recording data of a terminal are disclosed. The method includes: setting a relation condition list for triggering recording among function modules, and setting a corresponding random probability generator for each function module; determining whether to start recording data, and whether to end the data recording operation in accordance with the relation condition list or the random probability generator, during the operation process of each function module; and sending the respective data packets obtained by recording to a data management module for storage after the data record operation of each function module is ended. By adopting the method and device, fuzzy recording can be performed on data of the terminal, and data of different function modules can be stored centrally, and a query operation is simplified.