Abstract: Makerspace as a new model of public participating in innovation needs development and industrial connection, therefore, it’s important to build innovative network and prevent innovative network from shrinking. In this paper, considering the factors of network structure property, member node feature, cooperative strategy choice, internal and external control types and so on, the simulation model is built and the numerical analysis is made from a dynamic network evolution perspective. This paper analyzes the innovative network development and enlargement from the number of connections and the distribution of connections, and also analyzes the diffusion mechanism of the promise-breaking behavior in cooperation innovation network from the edge-deleted ratio and the node-deleted ratio. The study found that the impact of different cooperative connections on innovation network would be changeable, and the connection intensity has positive influence on the diffusion of the promise-breaking behavior in cooperative network, at the same time, network scale, control factor and threshold value have different regulation effects on this influence.