Abstract: The factors that influence H2 penetration though Pd-Cu alloy complex membrane and membrane stability are introduced. These factors that influence H2 permeation include material of the support，composition and thickness of the metal membrane. And these factors that influence membrane stability include the existence of barrier layer，poisoning by H2S and metal segregation on the membrane surface at the up pressure side. The mechanism of poisoning and segregation is discussed.

摘要： 对钯铜复合膜透氢性和稳定性的影响因素进行了综述。阐述了透氢性能影响因素包括膜载体、膜组成及膜厚度、操作压力、操作温度；稳定性能影响因素包括扩散障碍层、金属偏析和硫化氢中毒。并详细介绍了钯铜合金复合膜硫化氢中毒现象和金属偏析现象的机理研究。