Chinese economic develops fast and have became the second economic entity all around the world. The development of economic pushes the popularize of mobile clients. Accordingly, whenever and wherever the consumers are, they can acquire and share information about productions directly, e-word-of-mouth (eWOM) becomes one of the important part of online marketing. Customers prefer to trust opinion leaders and real users’ feedback rather than the advertisements which are made by companies. The choice preference of information source accelerate the development of social media. The Word of Mouth Marketing Association, have grown rapidly and have advocated for the burgeoning new industry. (Robert V. et al., 2010) Marketers and sociologists have recognized the importance of the phenomenon of word of mouth, for more than half a century, proposing, for example, that WOM affects the majority of all purchase decisions (Brooks 1957; Dichter 1966).They find that the “friend who recommends a tried and trusted product” rather than the “salesman who tries to get rid of merchandise” (Dichter 1966, p. 165). Marketing scholars has evolved from a transaction orientation to one based on relationships (Vargo and Lusch 2004) Consumers are regarded as active coproducers of value and meaning, whose WOM use of marketing communications can be idiosyncratic, creative, and even resistant (Brown, Kozinets, and Sherry 2003; Kozinets 2001; Muñiz and Schau 2005; Thompson and Sinha 2008) Therefore, when the behavior is on/off, impact measured as probability of purchase can differ substantially from impact measured as attitude change (Robert East 2015). This study will select significant respondents from Chinese social media users as sample. The WOM communication is send information to marketers from the market-based message interaction community ,gathering consumers with same interests. In this study, not only structural equation modeling (SEM) will be used to test research model. But also using the fuzzy-set Qualitative Comparative Analysis (fsQCA) and SPSS, the first method attempts to find a new configuration to verify the finding and the SPSS can be used to make reliability analysis and validity analysis. WOM of the research model will also be tested by fsQCA and SPSS to obtain the conclusion about what extent do two communication ways influence consumers’ purchase preference. We want to explore different results between opinion leaders and the real users in different communication ways. Based on the results we will give some implication to both marketing scholars and practitioners.

With the ecological environment deteriorating and rapid growth of world population, sustainable issue becomes a hot issue all over the world. All the state, industry and consumer levels pay more attention to the sustainable filed. Even Kotler (2011) in his study mentioned that the need for sustainable issue means new challenges to the scholars and practitioners. This research aim to the sustainable consumption filed in China. Based on the previous studies, sustainable consumption can be summarized including clothing, food, housing and travelling is an important way to cope with the deteriorating ecological environment and the rapid growth of world population. The Chinese government attaches great importance to sustainable consumption, at the same time the government has issued many sustainable policies to promote the development of sustainable consumption concept. Environmental policies consists of three kinds of instruments (regulation instrument, economic instrument, and information instrument), but which instrument is more effective to promote people’s sustainable consumption attitude and behavior, and whether these effects will be changed or not in different context, previous studies have no clear answer. Based on the literature view, this study organized and established the concept research model. Following the logic of policy-attitude-behavior, the researchers examined the relationship among environmental policy instruments, sustainable consumption attitude and sustainable consumption behavior. Meanwhile, due to long-term orientation was an important variable to explain attitude and behavior, based on time orientation theory, this research also tested the moderating role of long-term orientation between environmental policy instruments and sustainable consumption attitude. Data were collected from Chinese residents in the medium size city, after excluding 67 invalid questionnaires, 325 questionnaires were used to analysis. Through exploratory factor analysis and confirmatory factor analysis, this study confirmed that the scales of main variables had good reliability and validity. Researchers adopted SPSS19.0 to conduct multiple regression analysis. Results showed that regulation instrument and economic instrument had significant effects on sustainable consumption attitude, but the effect of information instrument was not significant. Long-term orientation played the positive moderating role between economic instrument and sustainable consumption attitude; consumers’ sustainable consumption attitude was correlated with sustainable consumption behavior, and was as a mediator between regulation instrument, economic instrument and sustainable consumption behavior. Finally, based on the research results we give some suggestions and contributions to both academy and practice. The conclusions of this study can contribute to the enrichment of environment policy theory，time orientation theory and sustainable consumption，and can provide a certain theoretical guidance and reference for the issue of government on how to promote the development of sustainable consumption. We also point out the limitations of this study and some suggestions for further researches.