Bending strength of corrugated plate of bulkhead has already been discussed by many authors including Nagai and Caldwell. Yagi has recently published the bending strength under inplane loads. The problems about corrugated bulkheads have therefore been almost all solved insofar as the total strength is concerned. The local strength such as elastic buckling, however, seems to the authors not yet being well discussed. In this paper the author first solved theoretically on the buckling phenomena due to both compression and bending, and then carried out experiments to examine the theoretical results for both cases. After comparing both theoretical and experimental results the good coincidence was obtained between them.