The niece is the name of the brother and sister of the child's mother, and the niece is the name of the brother and sister of the child's father. The way to distinguish a niece from a niece is simple. It depends on whether you have a surname with yourself. If it's a surname, it's a niece, not a surname or a niece. A niece refers to a person with the same surname, who is the daughter of my brother, younger brother or cousin. You can also call it a niece. Another situation can also be called niece, that is, the daughter of a friend. Of course, this is a way to express closeness or intimacy. A niece refers to a sister or child who is not a surname with herself. For example, her sister's daughter won't take her last name, so this is her niece.

In China, the traditional generation concept of the Han nationality has existed for a long time, taking itself as the center, four generations of elders and four generations of younger generations, forming a "nine-clan" blood relationship, that is, nine grades. Nieces and nieces belong to the fourth grade, including: sons, daughters, nephews, nieces, nieces, nieces, nieces, nephews, nieces. The "middle table" entry in Ci Hai explains: "In ancient times, the son of my father's sister (aunt) was called my brother-in-law, and the son of my mother's brother (uncle) was called my brother-in-law. The outer table and the inner table are called "middle table" brothers, and later the relationship between children of aunt, uncle and aunt is called "middle table". And "Tang" refers to the kinship with his grandfather, so strictly speaking, Table X is a relative, while Tang X is actually a relative.