The relationship between government support and enterprise innovation is context-dependent and related to specific implementation strategies. Crowd innovation space is an important part of the national innova- tion-driven development strategy and the innovation and entrepreneurship ecosystem, and is a new type of inno- vation and entrepreneurship service platform for “ mass innovation” . Since 2015, the regional support policies have greatly supported the crowd innovation space, and the maker platform has also actively carried out incuba- tion services for incubated enterprises, but the impact of regional support policies and platform incubation serv- ices on the innovation of incubated enterprises has not been empirically tested. Based on an integrated analysis framework of “ government-platform” collaboration, this paper constructs an impact analysis model of govern- ment support policies, incubation services, and innovation output of incubated enterprises, using data from the China Torch Statistical Yearbook (2017—2023) for empirical analysis. The results show that the three types of incubation services provided by crowd innovation spaces,namely economic services, network services, and ca- pability services,have a positive impact on the innovation output of incubated enterprises, with network services having the best effect. However, government support negatively moderates the relationship between economic services and network services and the innovation output of incubated enterprises, while it has no significant im- pact on the relationship between capability services and the innovation output of incubated enterprises. Further research suggests that the reasons for the negative moderation may be that the propensity effect of government support policies and the grabbing behavior of crowd innovation spaces in obtaining preferential policies have led to the misuse or inappropriate allocation of government support.