Abstract: Iterative innovation refers to the rapid development, feedback, and trial of products achieved by enterprises through micro focus, micro innovation, and micro iteration, in order to adapt to the constantly changing market environment and customer preferences. Therefore, the iterative innovation of SRDI enterprises has a significant characteristic of "small steps, fast running, and iterative approximation", and has become an important channel for the high-quality development of SRDI enterprises in the era of digital intelligence. The high-quality development of SRDI enterprises not only contributes to the development of new quality productivity, but also enhances the resilience of China's industrial and supply chains to facilitate the dual circulation of international and domestic markets. However, the differences in industry categories and innovation structures among SRDI enterprises in different industries will inevitably lead to differences in the allocation of innovation resources and trigger heterogeneity in iterative innovation. Therefore, it has become a consensus in academia that the heterogeneity of iterative innovation among numerous SRDI enterprises urgently needs to be explored. Existing literature has conducted extensive research on the antecedents, mechanisms, and consequences of the growth of SRDI enterprises, recognizing the important role of iterative innovation in business design, industrial design, and organizational design. However, there is a lack of in-depth research on the iterative innovation models of SRDI enterprises, and a lack of establishing connections between innovation contexts and iterative innovation models. In view of this, this article explores the iterative innovation patterns of SRDI enterprises and its matching with innovation contexts. By comparing the process and details of iterative innovation in the surveyed enterprises, two important contextual factors that affect the iterative innovation patterns of SRDI enterprises were first identified - external environment perception and innovation risk perception. Based on these two contextual factors, a 2*2 theoretical analysis framework was constructed. By scanning the iterative innovation process of the case enterprises in the data, the characteristics of iterative innovation in SRDI enterprises in different contexts were summarized, and four modes of iterative innovation in SRDI enterprises were extracted, namely: instant iteration, dual iteration, scenario iteration, and lean iteration. Instant iteration focuses on adapting to market changes through rapid product iteration, dual iteration emphasizes the dual characteristics of fast and slow iteration speed, scenario iteration focuses on applying core technologies to more scenarios, and lean iteration focuses on considering innovation investment costs and risks. Finally, this article chooses pattern matching technology to construct the relationship between context factors and the iterative innovation patterns of SRDI enterprises. The research conclusion expands the Y-shaped model for the growth of SRDI enterprises, providing specific guidance for them to deploy iterative innovation models according to different innovation scenarios, amplifying the "multiplier" effect of iterative innovation models for SRDI enterprises, forming more replicable experience methods, and creating a joint force to support integrated innovation development. This article extracts the iterative innovation patterns of SRDI enterprises in unique contexts, providing important references for SRDI enterprises in different industries to successfully implement iterative innovation based on their own contexts. It can also provide useful references for relevant government departments to formulate targeted policies to support the growth of SRDI enterprises.