Australia is a multi-ethnic nation made up of diverse immigrants. It has an area of similar size to the United States, but has a low population density. And the geographical features of the city and its population, which are concentrated on the east coast, are creating a unique police system in Australia. Australia has inherited the British system in the past, but a number of international crimes have occurred recently, and Australia's unique police system is emerging. In particular, the activities of the police were concentrated in the state police, but now the importance of the federal police(AFP) is emerging due to the necessity of international linkage. The Australian Federal Police Agency is responding to various national needs through various police innovations. In addition, the federal police function cooperatively with various government agencies, departments, and international nonprofit organizations to supplement the limitations of federal police. Australian federal police are providing a variety of investigative services that the government has commissioned and are expanding the scope of their activities, especially in criminal investigations. Child protection, counterfeit currency-related criminal investigations, cybercrime, family crime, fraud and drug crime investigations, as well as a variety of offenses from the police, such as prevention, investigation, exploration and countermeasures, Police activities are underway. In addition, it conducts various aviation-related crime prevention activities and is actively responding to recent terrorist attacks. This flexible and cooperative police activity suggests that the Role allocation and Cooperation of the national police and the autonomous police in Korea will be expanded in the future.