Abstract: A structure of platform for automatically producing Word design documents is introduced. The design idea is derived in consideration Visual Bisic for Application (VBA), ActiveX, Date Object (ADO) and Active Server Pages (ASP) techniques. The platform is composed of building document templates database, designing making tool of document templates and establishing application of B/S mode for producing documents automatically. The platform is applied to documents designing of satellite thermal control system successfully. It improves work efficiency and standardization greatly.