The AG600 aircraft departed in the morning from Zhuhai airport and its flight time lasted about an hour.
The corporation has claimed that it can carry 50 people during search-and-rescue missions, collect 12 tonnes of water in 20 seconds for firefighting and transport up to 370 tonnes of water on a single tank of fuel.
Its first flight successfully completed today the first Chinese-made amphibian aircraft AG600 in southern Guangdong province.
After nearly eight years in the making, its four turboprop engines allow the aircraft to stay aloft for up to 12 hours and already the government has commissioned 17 orders from the state-owned manufacturing company, Aviation Industry Corp of China.
China Conducts Successful Flight of World's Largest Amphibious Aircraft
The AG600's flight capabilities put all of China's island-building projects in the South China Sea well within range.
"Its 4,500km operational range and ability to land and take off from water makes it well suited for deployment over China's artificial islands", said Military Analyst James Char of Singapore's' Nanyang Technological University.
China's policy on the South China Sea is hotly contested by a number of neighbouring countries and.
The Philippines for many years was one of the region's strongest opponents of Chinese expansionism, and brought a complaint to a United Nations-backed tribunal. The AG600 is considered to be the largest amphibian aircraft in the world. This complemented the Liaoning, a second-hand Soviet carrier commissioned in 2012 after extensive refits. China spent $215 billion (181 billion euros) on military in 2016, well ahead of India at $56 billion and Japan at $46 billion.