Overseas tourism, also known as travel abroad, refers to travel with passports to other countries or regions, including border Tours, Hong Kong and Macao Tours and international Tours. Traveling to a different area, the travel documents are also different. Referred to in the present to travel abroad, especially for Chinese citizens to travel abroad at one's own expenses, which is organized by China's tourism enterprises of Chinese citizens to travel abroad in the form of the team at its own cost, including visiting relatives, visiting friends abroad and other short-term private matters. In view of the national conditions of China as a developing country, the national tourism administration and the ministry of public security jointly issued the measures on the administration of tourism administration of Chinese citizens, referring to the general practice in the world. The guiding principle of "planning, organized and controlled development" is adopted for the establishment of citizens' self-funded travel abroad