Innovation is a critical source of competitive advantage. With increasing competition, globalisation and improved communications technology, organisations are, to a large extent, operating and competing on the supply chain (SC) level. Similarly, an organisation's technology innovation is also presenting boundary-spanning features. The SC itself is a kind of network structure. In such a network structure, technology innovation, co-influenced by various interdependent elements, shows itself as a complex non-linear system, which comprises multiple feedbacks. However, the relationships among these elements are complex and unclear. Further investigation is needed so as to develop a model of continuous SC collaborative innovation. This paper embraces the system dynamics methodology and explores how elements internal and external to the SC interact with each other and contribute to SC collaborative technology innovation. The model serves as an exploratory tool for analysing the interaction and interdependence among network actors and evaluates possible alternatives to promote innovation.