全氟磺酸质子交换膜作为质子交换膜燃料电池和直接甲醇燃料电池的关键部件得到广泛关注。本文介绍了国内外全氟磺酸质子交换膜的发展历程和现状，讨论了商业化全氟磺酸膜存在的高温质子传导率低和燃料渗透率高等问题。最后结合我们的研究工作综述了解决这些问题的方法和研究进展。

It is concerned that Perfluorosulfonic acid (PFSA) membranes are the most critical components of proton-exchange membrane fuel cells (PEMFC) and direct methanol fuel cells (DMFC). In this article, the current status and development progress of PFSA membranes are briefly described. Some critical  problems for  commercial PFSA membranes, such as low proton conductivity at high temperatures and high osmosis of fuel, are discussed. Finally, combining our own researches, the development of methods for improving the PFSA membranes performances is reviewed.

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