Abstract: There is provided a method for translating a speech, includes recognizing the speech into a text which includes a long sentence containing a plurality of simple sentences, segmenting the long sentence into the simple sentences, and translating each simple sentence into a sentence of a target language. A long sentence segmentation module is inserted between the speech recognition module and the machine translation module in the method, wherein the long sentence in the text recognized can be split into several simple and complete sentences. In this way, difficulties in translation are relieved, and translation quality is improved. Further, there is also provided a user interface which allows the user to modify the segmentation results conveniently. The modifying operations of the user are recorded to update the segmentation model online to improve the effect of the automatic segmentation step by step.