The invention discloses a construction method for an engineering-product parameterization application system. The construction method includes the following steps that the classification standard and a retrieval system of products are built; application units of the products are minimized and parameterized; the parameterization standard and the individuation standard of different kinds of products are built; after the products are panoramically classified in a multi-dimensional mode, multi-dimensional screening is formed, layer-by-layer filtration is carried out, the parameter comparison function is combined, and difference among the products is differentiated; the products and the professional content of relative applications of the products are visually shown with the graph technology and the image technology to build video application factories and various graphic areas; on the basis of product retrieving, intelligent search of the products are added; the relative applications and the relative services are additionally arranged to all-specification products. According to the construction method, linkage among multi-dimensional retrieve, intelligent search, the video application factories, the relative applications and the relative services is adopted, inquiries and applications of the products have the accurate characteristic, the comprehensive characteristic and the rapid characteristic accordingly, the requirement of all kinds of professional users and the requirement of all kinds of non-professional users are met, and the one-stop requirement for inquiring, learning, applying and serving of the users is met.