Chinese fortune telling, better known as Suan ming () has utilized many varying divination techniques throughout the dynastic periods. There are many methods still in practice in Mainland China, Taiwan, Hong Kong and other Chinese-speaking regions such as Malaysia and Singapore today. Over time, some of these concepts have moved into Korean, Japanese, and Vietnamese culture under other names. For example, "Saju" in Korea is the same as the Chinese four pillar (Chinese: 四柱八字) method.
The oldest accounts about the practice of Chinese divination describe it as a measure for "solving doubts" (e.g. "Examination of doubts" 稽疑 part of the Great Plan :zh:洪範). Two well known methods of divination included bǔ 卜 (on the tortoise shells) and shì 筮 (on the stalks of milfoil shī 蓍). Those methods were sanctioned by the royal practice since Shang and Zhou dynasties. Divination of the xiang 相 type (by appearance – of the human body parts, animals etc.), however, was sometimes criticized (the Xunzi, "Against divination"). Apparently, the latter type was a part of the medical and veterinary practice, as well as a part necessary in match-making and marketing choices. A number of divination techniques developed around the astronomic observations and burial practices (see Feng shui, Guan Lu).
The dynastic chronicles preserve a number of reports when divination was manipulated to the end of achieving a political or personal goal.
A diverse culture of fortune telling that prevailed in the whole society came about during the Ming Dynasty. This article is going to mainly explore the occupation of fortune-tellers in Ming, including their professional skills, contact with clients, and social impact.
Some literary works in Ming time depicted the presence of various types of fortune-tellers. For instance, Story 13 in Stories to Caution the World by Feng Menglong illustrates the feature of a fortune-teller with “a bag on his back, a cap on his head, a black double-collar shirt with a silk waistband, a clean pair of shoes and socks on his feet, and a scroll of writing in his sleeves”.