1999 12.20 is the day when Macao returns to the motherland. The People's Bank of China issued a commemorative coin for Macao's return to the motherland, which was specially issued to commemorate Macao's return to the motherland. There are two sets of commemorative coins, and the average value of the two coins is 10 yuan. Each piece weighs 7.80g and has a diameter of 25.50mm, and is made of white copper alloy and yellow copper alloy, which are cast by Shenyang Mint.

The front patterns of the two coins in this set are composed of seven Chinese characters, namely "People's Republic of China (PRC)", "Lotus" and year number "1999", but the casting process of the first coin is inner ring white copper alloy and outer ring brass alloy, and the casting process of the second coin is inner ring brass alloy and outer ring white copper alloy.

The circulation of this set of coins is 20 million sets, resulting in low market value. At present, the market price of the whole product is around 40 yuan/set.