A smart interpreter engine is provided. The smart interpreter engine includes a speech to text converter, a natural language processing module and a translator. The speech to text converter is utilized for converting speech data corresponding to a first language into text data corresponding to the first language. The natural language processing module is utilized for converting the text data corresponding to the first language into glossary text data corresponding to the first language according to a game software. The translator is utilized for converting the glossary text data corresponding to the first language into text data corresponding to a second language.