The stakeholder litigation of EIA becomes a hot issue with the increase of disputation over NIMBY facilities location. However, the definition of stakeholder in such cases is still obscure. The main reason is that there is a different understanding on the legal interest in it. The norm of scope should be based on the environmental interest rather than the right of adjacent in existing legal interpretation or cases. There could be a practical norm for stakeholder litigation of EIA by scoping the environmental interest. However, there is an uncompleted delegation problem in such cases due to the public welfare nature of environmental interest. The resolution is to develop environmental public interest litigation, so as to comprehensively protect the people's environmental interest.