Moon gate and moon hole gate are the same type of architecture, also known as a moon gate. Originating in China, it is a circular arched opening in the courtyard wall of classical Chinese gardens, Vietnamese gardens, and large residential complexes. In Korean traditional architecture, it is found indoors.

Moon Gate, without any access control, is a hallmark of classical Chinese gardens, alongside buildings, pavilions, verandas, terraces, galleries, artificial hills, and water bodies, all being essential components of Chinese gardens. It serves as an entryway between courtyards and also allows for the introduction of a different landscape through its opening, combining utility with ornamentation.

The walls on either side of the Moon Gate are typically painted in a light pink, with a grey decorative border at the edge of the door. The lower section is flat and does not have a threshold, while the upper part features a horizontal plaque with a subtle artistic meaning.

In addition, it carries the meaning of reunion and felicity, symbolizing a life of unity and happiness.