In the context of carbon peaking and carbon neutrality goals, ethanolamine (MEA) has found widespread application in CO2 removal due to its excellent CO2 capture performance. However, during storage and usage, MEA inevitably undergoes leakage and emission, which cand easily lead to its escape from the liquid phase to the gas phase, posing risks to the environment and human health. To mitigate the adverse effects of MEA on the external environment, it is necessary to achieve the green and resourceful degradation of MEA. In this work,different types of TiO2, including anatase TiO2, P25 TiO2, and rutile TiO2, were employed as supports to prepare three Ag/Ti catalysts (Ag/TiO2-A, Ag/TiO2-P, Ag/TiO2-R) via an impregnation method. These catalysts were then used to investigate the catalytic degradation of MEA coupled with the simultaneous production of ammonia. The study found that compared with the other two catalysts, Ag/TiO2-R catalyst exhibited the highest MEA removal efficiency and NH3 yield. Through characterization and analysis using X-ray photoelectron spectroscopy (XPS), oxygen temperature-programmed desorption (O2-TPD), and hydrogen temperature-programmed reduction (H2-TPR), it was determined that the rutile TiO2 support not only facilitates activation on Ag/TiO2-R catalyst, enhancing its degradation efficiency, but also enabled the loaded Ag to exist in an oxidized state on the catalyst. This phenomenon was attributed to the presence of more lattice defects on Ag/TiO2-R, which enhanced the anchoring effect of the catalyst, promoting the loaded silver to exist in an oxidized state. The presence of oxidized silver facilitated the cleavage of C-N bonds during MEA degradation, thus improving the NH3 yield. Therefore, the Ag/TiO2-R catalyst prepared with rutile TiO2 support exhibited the optimal catalytic performance, it achieved complete degradation of MEA at 270℃, and when the reaction temperature reached 300℃, the yields of the products NH3 and CO2 were 80% and 97%, respectively.