▎ 摘　　要

We studied the transport properties of corrugated graphene nanoribbons by the recursive Green function method. We show that in the presence of ripples the minigaps with zero conductance and minibands with conductance fluctuations form in the zigzag ribbons among the first Van Hove singularity. For the metal armchair ribbons a conductance gap is present in the vicinity of the Fermi energy, which corresponds to a metal-semiconductor transition. With the fluctuation of ripples intensifying the overall averaged conductance decreases for both the zigzag and armchair ribbons and it tends to be zero. These results are useful for a better understanding of the electronic transport properties of realistic graphene nanoribbons and will be helpful for the design of nanodevices based on graphene.