Position of southeastern Asia. Waterway:The Mekong River run through the country from north to south; southwest face to Gulf of Thailand provided with the international seaport-the Sihanoukville international port.

Landway: neighbored with Vietnam at east, meet Laos at north and close to Thailand at southwest. Aviation: Phnom Penh International Airport, Siem Reap International Airport, and HoChiMinhCity International Airport in Vietnam.