Yansheng Coins, commonly known as Chinese numismatic charms, refer to a collection of special decorative coins that are mainly used for rituals such as fortune telling, Chinese superstitions, and Feng shui. They originated during the Western Han dynasty as a variant of the contemporary Ban Liang and Wu Zhu cash coins. Over the centuries they evolved into their own commodity, with many different shapes and sizes. Their use was revitalized during the Republic of China era. Normally, these coins are privately funded and cast by a rich family for their own ceremonies, although a few types of coins have been cast by various governments or religious orders over the centuries. Chinese numismatic charms typically contain hidden symbolism and visual puns. Unlike cash coins which usually only contain two or four Hanzi characters on one side, Chinese numismatic charms often contain more characters and sometimes pictures on the same side.

Marriage coin charms are a category of Chinese, Japanese, Korean, and Vietnamese numismatic charms that depict marriage, harmonious, and/or sexual imagery. These coin charms often imitate the design of Chinese cash coins, but can exist in many different shapes and sizes.