将１０１根金属丝聚集成束，制成一种检测防锈油膜防护性能的新型测试电极，测定了涂油丝束电极的腐蚀电位和油膜电阻的分布。结果表明，腐蚀电位分布服从非连续二项分布，油膜极化电阻分布服从对数正态分布。基础油中加人油溶性缓蚀剂，减少徐油丝束电极的腐蚀电位在低电位区的分布，减少甚至消除油膜极化电阻在低阻区的分布，明显改善了油膜的防护性能。 A total of 101 wires were gathered into bundles to form a new type of test electrode for testing the protective performance of anti-rust oil film. The corrosion potential and the distribution of oil film resistance were measured. The results show that the corrosion potential distribution obeys the non-continuous binomial distribution and the polarization resistance distribution of oil film obeys lognormal distribution. Oil-based corrosion inhibitor added to the base oil to reduce the corrosion potential of Xu oil tow electrode in the low-potential distribution, reduce or even eliminate the oil film polarization resistance distribution in the low resistance zone, significantly improved the protective performance of the oil film.