Under Environmental protection laws and regulations by the EU, it is very difficult and spend a lot of time to deal with a series of election materials, part reviewing process, supplier audit, and document management. Therefore, enterprises implement the green supply chain information system to handle the procees between GSCM in practical. However, this study found that there are some problems in GSCM such as the size of coporation and the complexity of recognition process. Therefore, this purpose of this study is to construct a green supply chain SaaS platform in IT industry and eager to benefit the convience from SaaS model that enhances the efficiency of GSCM process and makes information transparency .Besides, in the further research we focus on the application of Web2.0 in SaaS-based IT platform.Using scenario analysis and fuzzy delphi method to verify the SaaS model. In conclusion, the result may be provided to information service providers as a reference.By Connection of Web2.0 tool such as blog, Wiki, FB, which stressed out the open- shared interactive applications enhance SaaS information services platform to achieve sharing resource and information transparency.