By the reviewing of the existing research on the crowd-sourcing model, the connotation of crowd-sourcing was analyzed from the four dimensions of outsourcing, information technology, business model and knowledge innovation, the production mechanism of crowdsourcing was summarized as three aspects: the development of Internet technology and social media, the changes of individual demands and consumer awareness, the regurments of enterprise innovation and market competition, and then the existing researchs on crowdsourcing risk were concluded in the three aspects of the actions of subject fraud, intellectual property risk and other aspects. Finally, the relationship between the researchs on the connotation, the production mechanism and the risk research of crowd-sourcing was analyzed and the future researchs on them were looked ahead.