Abstract: With the rapid development of online education, the virtual experiment experiences from academic research to practical application. At the same time, the theories and methods of computersupported collaborative learning also develops greatly. This paper firstly analyzes the the development summary of the virtual experiment system and the features of collaborative experiment mode, then discusses the study of the collaborative learning mode in virtual experiment system, proposes the chief component and key technology of the virtual experiment system based on collaborative experiment mode, gives the choice of development tool, finally gives the summary and expectation.

Key words: virtual experiment, collaborative learning, CSCL, Web-based virtual experiment