As climate change intensifies, countries under the Paris Agreement aim for net-zero emissions by 2050. Taiwan’s National Development Council outlined the “Taiwan 2050 Net-Zero Emissions Pathway and Strategy” in 2022. Building on this framework, the Water Resources Agency (WRA) of the Ministry of Economic Affairs adopted the 2019–2021 average emissions of 587,000 tCO2e as its baseline and established phased reduction targets: a 20% reduction by 2022, 30% by 2023, 40% by 2030, and 50% by 2050. These targets are supported by complementary measures such as afforestation and carbon sequestration programs, aiming to integrate green infrastructure into hydraulic engineering and gradually realize the long-term vision of net-zero. In alignment with the WRA’s “Five-Year Plan for Net-Zero Carbon Emissions in Hydraulic Engineering (2023–2027),” this branch has advanced carbon reduction guidelines spanning planning, construction, and operation stages, while continually refining them with updated technologies, innovative materials, and accumulated performance data. At the same time, it has strengthened capacity building by training seed instructors in all 14 branch offices, developing progressive certification programs, and embedding carbon management practices alongside international standards to ensure broad and lasting adoption. Furthermore, this branch has introduced modular irrigation systems and drip technology to address the low survival rate of transplanted trees, thereby improving water efficiency, enhancing carbon sequestration, and supporting ecosystem resilience. Through these combined efforts, hydraulic engineering in Taiwan is moving beyond traditional approaches toward a more integrated, sustainable, and forward-looking model that contributes meaningfully to the nation’s overall climate objectives.