1. An intelligent decision supporting system, the system comprising: at least one controller configured to execute one or more modules; and a storage unit for storing the one or more modules, wherein the one or more modules comprises: a multi-dimensional classifier module, comprising a plurality of classifiers that define different semantic standards and are trained based on the different semantic standards, for classifying a text by the semantic standards and for outputting a plurality of attributes of the text and a confidence rate of each of the plurality of attributes; a question submitting module for receiving the output of the multi-dimensional classifier module, for forming a question based on the plurality of attributes of the text and the confidence rate of each attribute, and for submitting the question to an inference module; the inference module for receiving the question submitted by the question submitting module, for inquiring of a domain ontology knowledge library based on the question, and for providing an answer for the question to a decision reply module; a domain ontology knowledge library module for storing a domain ontology knowledge library related to an application domain of the intelligent decision supporting system, wherein the domain ontology knowledge library records descriptions of rules for deriving decisions corresponding to the semantic standards of the multi-dimensional classifier module; and the decision reply module for providing the answer for the question provided by the inference machine to a user.