Fuzzy front-end (FFE) is the research frontier of management studies in both domestic and international academia. On the other hand, in the industrial ciecles, the CCP's 20th report also addresses the importance of manufacturing startups in determining China's future development. Therefore, how to utilize FFE innovation to increase manufacturing startups' performance becomes a crucial goal of both academic researches and industrial practices. The relationships between FFE entrepreneurial bricolage activities, corporate social responsibility (CSR) and NPD performance by adopting a resource based view was studied. It surveyed 357 manufacturing startups and the empirical results from the data sample of manufacturing startups show that FFE entrepreneurial bricolage activities have positive and significant impacts on NPD Performance. FFE entrepreneurial bricolage activities also have positive and significant impacts on startups' CSR engagement. CSR engagement has positive and significant impacts on startups' NPD performance. CSR also plays a mediating role between FFE entrepreneurial bricolage activities and NPD performance. The research results triggered the future direction of FFE innovation research and practice.