Taking TusStar as the case study object, this article investigates how the incubation inner network at different stages in the development process of TusStar dynamically affects the resource actions of the incubation platform, which in turn affects the growth of incubating technology start-ups. The findings are as follows. The incubation platform will continuously optimize its resource action selection according to the development status of the inner network, presents a dynamic upgrading process of "resource construction→resource arrangement→resource concertation→resource reconstruction". Incubation platform helps technology start-ups improve resource development foundation and resource utilization efficiency by taking corresponding resource actions, thus promoting enterprise growth. Incubation platform resource actions play an intermediary role in the process of inner network promoting the growth of technology start-ups. The research conclusions of this paper are helpful to understand the dynamic evolution of the incubation platform resource action in the development of the inner network, and reveal the internal mechanism of the incubation inner network on the growth of technology start-ups.