Taking the large-scale industrial enterprises in Shanxi Province as the research object, an evaluative framework for assessing the integration level between technological innovation and standardization is constructed. Using the TOPSIS （technique for order preference by similarity to ideal solution）evaluation method and the coupling coordination degree model, the current situation and developmental trends of this integration from 2012 to 2022 is longitudinally assessed. The findings indicate a fluctuating yet upward trend in the coupling degree, coordination degree, and overall coupling coordination degree between technological innovation and standardization within Shanxi Province's enterprises over the specified period. Despite these fluctuations, a generally low level of high-quality coupling and a need for enhanced interdependence between the two domains are highlighted. To address this, strategic recommendations are proposed for enterprises, standardization bodies, and government agencies, aiming at fostering a high-quality, collaborative growth between technological innovation and standardization in Shanxi Province.