The similarity between the thesaurus and the ontology lays in their functions and features. In regard to agriculture, the establishment of intelligent retrieval prototype should be based on forestry thesaurus and then shifts to ontology, so as to get more efficient retrieval of forestry terminology with higher retrieval speed and accuracy. In this paper, however, the focus would be the construction of intelligent forestry ontology and its intelligent retrieval module. On this basis, to establish an efficient intelligent retrieval prototype with clear elements, the study would combine the management and service of ontology, together with the acquisition of browser information. To further pinpoint the methods and elements of intelligent forestry retrieval prototype meeting higher standards and to provide solid theoretical foundation for its optimization, the last research would be about the document predisposition and other factors. This paper's research method, demonstrating compacted process and clear scientific property, lays reliable basis both practically and ideologically for further study.