The embodiment of the invention discloses a recommending system for digital television personalized programs and a method of the recommending system. The system comprises a program information recording module, a program information analyzing module and a program recommending module. The program information recording module is used for recording data information of the programs watched by a user; the program information analyzing module is used for analyzing user watching records stored in the program information recording module and excavating out program content preferred by the user; the program recommending module is used for forecasting time for playing the programs next time according to the program content which is preferred by the user and excavated by the program information analyzing module, and recommending programs of the same type to the user. The programs and channels preferred by the user are excavated, and the similar programs are recommended according to user preference, so that the technical problems that at present potential personalized requirements of the digital television terminal user can not be truly excavated, and an existing digital television interactive platform can not provide personalized digital television service for the digital television terminal user are solved.