From the angle of comparative science of law, this paper makes a study of the theories and rules of the continental law system and Anglo\|American law system regarding contract interpretation, Meanwhile, in the light of specific conditions in China, it makes a detailed and comprehensive analysis of the rules on contract interpretation.

The diversity of contract language results in the ubiquity of contract interpretation.

This paper introduces and elaborates on the different contract interpretation theories and the application rules between the civil law and Cose law systems.

Research on synchronous explanation and streering resoning in expert systems;

The judgment of whether there is a meeting of minds or whether there is a mistake shall be reached by interpretation of contract on the basis of comparing and weighing the reasonableness of reliance and zurechenbarkeit.

At present,our contract law exists many problems on contract explanation system.