Low-carbon technology innovations (LTI) have attracted wide attention due to their effects on reducing carbon emissions, and improving LTI behavior is a kind of beneficial measures on carbon emissions control in enterprise. The current research explores the determinants that affect LTI behavioral intention, and an integrative model of external relations network (ERN) on LTI, incorporated with knowledge absorptive capacity (KAC), is used. An effective sample of 380 staffs who worked in industrial enterprise of China was collected, which empirical results reveal the correlation between KAC and LTI, ERN and LTI, and the role of KAC. Hence, this paper discusses the implications for integrative model based on KAC and provides suggestions for improving the ability of LTI, and argues that LTI is not isolated, and it needs to be realized by the combination of ERN and KAC, thus, there should be paying more call for greater attention to ERN and KAC, rather than purely focusing on resource utilization.