As a semantic foundation, ontology is extensively applied in areas such as information retrieval, artificial intelligence, semantic web and knowledge management and so on. This study adopts the ideas of reuse in software system model to combine the construction of an evaluation system and ontology against the static drawbacks in current construction of an evaluation system. It takes advantage of the concepts in domain ontology to make a domain stipulation and model mapping. Besides, it is the first time to apply the concepts to the construction of FDI evaluation system. It has important significance for socio-economic areas and it provides exploratory methods and routes for how component library can be reasonably adaptive and assemble the required components.