Abstract: Online group buying industry has emerged since the beginning of 2010 in China; however it has sharply declined only after a one and half years of crazy development. Credit chaos is the main cause for the decline. Prevalence and severity of credit loss in online group buying industry not only harm the interests of consumers, cracking down their confidence in the online group buying, but also ultimately constrain its own development. Since August 2010, a large number of online group buying businesses have gone bankruptcy one after the other. It is clear that credit rebuilding is the strategic demand for the future development of online group buying industry in China, and is also the inevitable choice for the current survival of the industry. However, the study on the credit management technology of e-commerce under the network environment has just started, and the credit theory of e-business that it depends on is basically blank. Based on that, guiding by traditional credit theory, the study on the credit behavior characteristics of online group buying business based on the information available to the public is conducted in order to provide the theoretical basis for the credit management of online group buying and other e-businesses.

Key words: e-business, online group buying, credit, behavior characteristic