Based on the analysis of the teaching practice of Business Studies, the writer puts forward the proposalof a new teaching mode for Business Studies with multimedia networking system with CAI component as themain contents. It can make up for the deficiencies of the traditional teaching practice and help to share theexisting teaching resources. It provides learners with a more authentic environment and a more open learningsystem. She also posits that multimedia networking system is, without any doubt, a promising mode for business studies.