Aim to resolve the problems oftechnical information hard to break down, classify, show and hard to share data in post-develop of manual, this paper use standard analysis method and specification classify principle to design the information set corresponding data module by combining S1000D specification and equipment IETM manual concrete compile in our department after analyzing the source of equipment technical information. Technical informationbreak down model of equipment system structure is established for breaking down the technical information easily and more accord with standard. This model ensure the consistency of IETM manual development, improve the reusing, maintenance, sharing, effectivenessof equipmenttechnical information, and great improve the efficiency of IETM manual compile.