Abstract: The excellent characteristics of the direct methanol fuel cell (DMFC) have made it the subject of much research in recent years. The principal component influencing the performance of the DMFC is proton exchange membrane. In this paper，recent research progress of the membrane is reviewed，including the development of natural macromolecules used as proton exchange membranes. The advantages，disadvantages and promising applications of this kind of material in the DMFC are also discussed.

摘要： 直接甲醇燃料电池是近十年兴起的新型燃料电池，并以其独特的优点引起了人们广泛的关注。作为其重要组成部分的质子交换膜的性质是影响电池性能的关键因素。本文在介绍近两年质子交换膜研究最新进展的基础上，综述了天然聚合物用作质子交换膜材料的研究情况，并分析了其优劣势及应用前景。