利用超声清洗铂电极表面的方法制备了铂支撑的自组装类脂膜．应用电化学交流阻抗谱及循环伏安方法测定了浸有成膜液的铂电极在０．１ｍｏｌ／ｌＫＣｌ中浸泡不同时间后的电化学行为．由交流阻抗谱测得所形成的铂支撑双层类脂膜的电容值为０．５１μＦｃｍ－２，电阻为１．３×１０９Ω．在（－０．１～０．５）Ｖ的研究范围内，铁氰化钾／亚铁氰化钾的氧化还原峰消失，表明所形成的类脂膜没有明显的缺陷． Platinum supported self-assembly lipid membranes were prepared by ultrasonic cleaning of the surface of platinum electrode. Electrochemical impedance spectroscopy and cyclic voltammetry were used to determine the electrochemical behavior of the platinum electrode immersed in 0.1 mol / L KCl for different time. The capacitance of the platinum-supported bilayer lipid membrane formed by AC impedance spectroscopy was 0.51 μFcm-2 and the resistance was 1.3 × 10 9 Ω. Within the range of (-0.1-0.5) V, the redox peaks of potassium ferricyanide / potassium ferrocyanide disappeared, indicating that there was no obvious defect in the lipid membranes formed.