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This paper studies the rapid generation of data module based on aggregation. Throughing putting Cartesian product operation to information set and equipment unit structure set based on aggregation, the author advance a new concept to construct equipment unit information with information set. It realizes Sconstruction of data module rapidly and effectively by using this model to do Cartesian product operation with information set and equipment unit structure set. Compared with traditional IETM manual making methods, this construction technology makes a breakthrough in data module generation,which takes a great improvement in efficiency and guarantees the completeness. At the same time, it also improves the efficiency in development of IETM manual.