The Regional Flag of the Macao Special Administrative Region of the People's Republic of China is emerald green with a lotus flower above the stylized Governador Nobre de Carvalho Bridge and water in white, beneath a circular arc of five golden five-pointed stars: one large star in the center of the arc with two smaller stars on each side of the large star, each with a point angled directly outward from the center of the common circle on which they lie.
The lotus was chosen as the floral emblem of Macau. The Governor Nobre de Carvalho Bridge is a bridge linking the Macau Peninsula and the island of Taipa. The bridge is one of the most recognisable landmarks for the territory. The water beneath the lotus and the bridge symbolise Macau's position as a port and its role played in the territory. The five five-pointed stars echo the design of the flag of the People's Republic of China, symbolizing the relationship Macau has with its sovereign state.
Macao began to use the flag design before its handover to China on December 20th, 1999. The flag was designed by professor of arts and crafts at Henan University, Xiao Hong.
According to the Basic Law of Macau, the Macau Regional Flag is a green flag with five stars, a lotus flower, a bridge and sea water. This law also adopted "Apart from displaying the Flag of the People's Republic of China, the Macao Special Administrative Region may also use a regional flag".
In 1993, several proposed designs were put forward.
Prior to the handover to China in 1999, Macau officially used only the Portuguese flag, in contrast to British Hong Kong which used a defaced Blue Ensign as its flag, alongside the Union Jack. In 1967, there were proposals to give each overseas province its own flag, consisting of the Portuguese flag with the local coat of arms, but none was ever adopted.
The Government of Macau adopted a flag with the colony's coat of arms on a light blue field. Meanwhile, the Municipal Council of Macau had a flag with a Portuguese-style coat of arms and two angels as heraldic supporters, which was used at the 1999 handover ceremony as well as the 1990, 1994 and 1998 Asian Games.