The difference lies in the different requirements for organizers, participants and participating projects. 1. The organizers are different: Guochuang is co-sponsored by the Ministry of Education and the Ministry of Science and Technology, and Dachuang is co-sponsored by the Central Committee of the Communist Youth League and the Ministry of Education.

2. Different participants: Guochuang is mainly aimed at students and researchers from universities and scientific research institutions across the country, while Dachuang is aimed at students from universities and middle schools across the country.

3. Different requirements for the participating projects: Guochuang requires that the participating projects must be original, innovative, practical and feasible scientific and technological projects, and Dachuang requires that the participating projects must be innovative and practical entrepreneurial projects.