It is an important way to improve the application efficiency of the control simulation machine by applying speech recognition technology to training of ATC students. On the basis of analyzing the characteristics of Chinese and English control instruction, fundamentals of speech recognition technology has been studied in this paper. And a set of speech recognition technology which is suitable for the phonetic characteristics of Chinese and English contorl commands has been designed. The corresponding procedures and flight simulation interface have been designed with MATLAB. Unique control instruction speech recognition template library is completed, and under the control of voice commands, the aircraft can fly very well in the flight simulation interface. The results provide reference for further realization of the automatic simulation of captain's seat.