The Moon Festival originates thousands of years ago and is celebrated in many Far East Asian countries that once used the lunar calendar like Vietnam, China and Korea and is considered the Children's Festival.

There are several legends connected to the Moon Festival. The Moon Festival was initially a harvest celebration celebrated on the fifteenth day of eighth month on the lunar calendar, during which, the moon appears larger than at any time of the year. The moon represents fullness and prosperity of life.

During the Moon Festival, it is customary to give boxes of moon cakes (Banh Trung Thu) to family and special friends. The traditional moon cakes are usually very rich in taste. They have a bright yoke in the center to represent the moon. They are filled with lotus seeds, orange peel, ground beans.

Traditionally, during the night of Moon Festival, children parade on the streets, singing with colorful lanterns in hands. There are several different shapes of lanterns including butterflies, fishes, and stars. There are also lanterns which spin around when a candle is placed inside (den Keo Quan), symbolizing the seasonal spinning of the earth around the sun.

The flower dance and dragon dance are popular during Moon Festival. The Lord Earth, called Ong Dia, is the dancer who dances around the dragon, urging it on. Ong Dia has a very round, happy smiling moon-face. He represents the prosperity and wealth of the earth.