In Australia's cross-border logistics, Australia has developed and used more international multimodal transport, air line or liner ocean line. Australia has also tried to develop and use the road and railway combined transport mode, but it is not satisfactory. Finally, taking into account the actual geographical factors and the actual social environment in Australia, it is concluded that international roads and railway lines are not suitable for Australia. With the frequent use of multi-modal transportation, Australia has equipped various sea ports and air ports with relatively complete loading and unloading facilities and equipment. Although Australia's market is good, there are still many legal problems besides the objective geographical conditions.