Grassroots innovation is growing and spreading throughout the world as a social innovation in the elaboration of modern and traditional knowledge, formal and non-formal innovation, as well as individual and institutional innovators. Grassroots Innovation shows how poor and marginalized groups are able to develop creativity and sustainable innovation in solving problems around them. Therefore, it is important to learn about a variety of grassroots innovation movement in various parts of the world as a reflection of the strategy of sustainable community development. This paper summarizes the experience of grassroots innovation movements in some countries, such as India, China, and Brazil through the study of the current literature. Learning from Grassroots Innovation Movement will give an overview of the opportunities, challenges, and issues in the context of building a community from the grassroots.