KP sister is a word in network language, which is often used to describe a female role. KP means "open the screen", and Dajie is short for "Sister". In most cases, KP sister is used to praise women's achievements in a certain field, while others are used to ridicule.

The use of KP sister began in the live broadcast industry and was originally used to describe the popular female anchor. Later, KP sister was extended to other industries and became synonymous with "Sister Bai Ying", "Sister Beauty", "Sister Craftsman" and "Sister Captain". Nowadays, KP sister has become a network language, which is widely used in hot events, leaderboards, comments and other occasions.

Although KP sister is a network term, it reflects a kind of respect and recognition attitude towards women in the present society. The emergence of KP sister represents more and more opportunities for women to show their talents in all walks of life. At the same time, Sister KP has also built a relatively relaxed and humorous network culture for people, providing new topics and interesting points.