Abstract: The state-of-the-art developments and progress of multi-scale mixing phenomena in micro-fluidics and nano-fluidics are reviewed. The approaches to characterizing multi-scale mixing phenomena are discussed. Some key issues and feasible methods for future research are also presented. Finally，several typical applications using micro-fluidics and nano-fluidics，including combined reaction，electrochemical reaction and DNA separation，are given.

摘要： 综合概述了微纳米流体多尺度混合现象的发展和研究现状，探讨了微纳米流体多尺度混合现象的表征方法，指出了需要解决的关键问题和可行的研究方法。最后给出了微纳米尺度混合现象的一些典型应用及展望，如组合反应、电化学反应及新型DNA分离。