1. A device for interactive machine translation, comprising: a machine translation engine comprising a morphological/syntactic analyzer for analyzing morphemes and sentences of an original text and generating original text analysis information, and a translation generator for generating a translation and translation generation information on the basis of the original text analysis information; a user interface module for displaying sentence structures of the original text and the translation, and a corresponding relationship between the original text and the translation to a user on the basis of the original text analysis information and the translation generation information, and for receiving corrections to the original text, the translation, the sentence structures of the original text and the translation, or the corresponding relationship between the original text and the translation from the user, an original text error detector for determining an inferred erroneous part of the original text on the basis of the original text analysis information, and a translation error detector for determining an inferred erroneous part of the translation on the basis of the translation generation information, wherein the user interface module displays the inferred erroneous part of the original text and the inferred erroneous part of the translation to the user, the machine translation engine regenerates the original text, original text analysis information, the translation or translation generation information on the basis of the user's corrections, and the user interface module displays corresponding parts between the original text and the translation on the basis of user input, and changes a color or font of letters of the corresponding parts between the original text and the translation on the basis of the user input.