The invention discloses a Chinese query clause orientated three-level inquired target analysis method, which comprises the following steps: according to the limited conditions of a system language, establishing a knowledge base of compound concepts and deduction rules; identifying inquired targets in the knowledge base, and classifying the inquired targets into a direct inquired target, a logical deduction target and a comparative judgment target; if the comparative judgment target is identified, extracting the corresponding logical deduction target or the direct inquired target, otherwise, directly entering the next step; if the logical deduction target is identified, converting the logical deduction target into the corresponding direct inquired target, otherwise, directly entering the next step; if the direct inquired target is identified, directly performing query conversion and converting the direct inquired target into a data extracting target for retrieving professional basic knowledge base acquiring answers by the system; and generating values answering user targets through concept synthesis and deduction according to the query and analysis results and the type of an initial inquired target in the query clause, thereby forming answer clauses fed back to users. The method can understand user query clauses of different structural forms, and express the user query clauses more freely in an expression mode.