Abstract: The Base of the Pyramid （BOP） market provides new opportunities of innovation and growth for the future and the enterprises can create economic and social value at the same time by developing low-cost and high-quality products for poor people. However, the literature offers little theoretical or practical guidelines for effective and efficient strategies or methods facilitating innovative product development in the BOP market. Based on the qualitative data on six product innovation cases in Chinese and Indian BOP market, this paper summarizes four key successful factors necessary for effective product development and develops corresponding analytical framework. The research not only enriches the field of innovation in BOP market but also gives references for enterprises’ innovative practice.