The invention discloses a special chalk holder, which belongs to the technical field of modern life application. Millions of teachers in modern life use chalk to write on the blackboard every day, and live in the chalk dust after wiping the blackboard every day, which can cause discomfort in the nose, throat and throat; at the same time, long-term direct skin contact with chalk also exists health problems. The purpose is to solve practical problems, improve teaching conditions, avoid direct contact between users' fingers and chalk, and reduce invisible health hazards to users; at the same time, the use of chalk can be extended, the remaining amount is small, and environmental protection is achieved; it is characterized by The device is composed of a pen holder body, a pen holder jacket, a spiral inner seat, a wiper head, an elastic thread and other related auxiliary functional parts. The invention has a series of advantages such as erasing writing errors at any time, saving time, improving efficiency, long service life and low cost; meanwhile, the product has a wide range of adaptability, good promotion prospects, and good economic and social benefits.