The interfacial intelligent characterization instrument was developed, designed, and manufactured with support from the Hou Xu research group. It provides strong interfacial characterization capability and rich expansion modules for research, teaching, science outreach, and industrial sensing. The instrument supports visual detection, liquid property measurement, and liquid transmembrane testing modules, extending measurements from solid-liquid-gas interfaces to solid-liquid-liquid dual-liquid interfaces and enabling precise characterization of confined interfacial tension competition, trace substance detection, surface energy, pore-size parameters, and continuous in-situ pressure monitoring.