The vigorous development of digital construction service provides an important opportunity for the value transformation of green innovation of new energy vehicle (NEV) enterprises. Based on this, this study explores the influence of green technology innovation on green innovation value, and studies the moderating role of digital construction service on this relationship. Furthermore, this study adopts heterogeneity analysis from the perspective of profitability to explore how to optimize the effect of digital construction service on the value transformation of green innovation. After analyzing panel data of Chinese NEV venture enterprises from 2015 to 2021, we find that green technology innovation can improve green innovation value, and this process is positively moderated by digital construction service. Moreover, the results of heterogeneity analysis indicate that under higher profitability, the moderating effect of digital construction service is strenghthen. This study has made theoretical contributions and practical implications for government and managers to develop digital construction service rationally, and optimize the value transformation process of green innovation to improve the value.