Abstract: The intellectualization of the computer is such a topic that the professional specialists all over the world focus their attention upon it day and night. Its realization will, of course, push the computing technique to a new stage of epoch-making. In this paper, the features and the characteristics of the artificial intelligence and the expert systems are introduced in brief. Also,introduced here is its developments and application. It has been proved through its application that, as a branch of the artificial intelligence, the expert system plays a very important role in the development of the artifical intelligence. According to the present situation of the seismic survey in our country, the introduction of the expert system with the function of artificial intelligence and the realization of the automatic interpretation are very important in speeding up the steps of the oil/gas exploration of our country.