Possum foods have been examined since about 1920 though more scientific research did not begin until 1946-47. The results of both incidental observation and detailed research have many aspects in common and a few which show peculiarities restricted to certain localities or types of habitat. An overall picture of the food of possums and their feeding habits is covered in this paper. Food habits of Trichosurus vulpecula in New Zealand are compared with those in Australia.