Provided herein are an electronic apparatus and a method for controlling thereof. The method for controlling an electronic apparatus may include: acquiring a voice command, performing voice recognition of the voice command and acquiring a first text, identifying a prestored indexed word among a plurality of words included in the first text, identifying a rule template among a plurality of prestored rule templates including the indexed word and slots matched to at least one word excluding the indexed word among the plurality of words, and acquiring a control command corresponding to the voice command based on the identified rule template.