This paper puts forward a method based on the characteristics of tabular layouts of article characteristics deaerator parameter design. This method as database and model base for support, then to realize the deaerator's intelligent parametric design. Tabular layouts of article characteristics is to describe the characteristics of table the deaerator's overall, parts, designs and so on, then plus the enterprise standard to form inference engine, use VB6.0 to make inference engine as a user's operated computer object to realize the function from parameter calculation to the structure design, process design, finally create and integrate the 2D CAD drawings.