Eutectogels constitute a new class of soft materials, integrating the most desirable characteristics of traditional gels and offering broad versatility across numerous applications. However, the development of thermo-responsive eutectogels, particularly those capable of thermally switchable transparency, remains highly challenging. In this study, a smart thermo-responsive eutectogel (STE) is fabricated using an N-isopropylacrylamide/metal salt-based deep eutectic solvent. Leveraging multiple hydrogenbonding and coordination interactions, the STE displays excellent mechanical properties, achieving a tensile strength of 2.7 MPa. Notably, the STE demonstrates an upper critical solution temperature, undergoing a reversible transition from an opaque to a transparent state during the heating–cooling cycle. This unique feature enables its integration into various smart display systems.