A telescopic chopstick is characterized by consisting of a hollow chopstick rod, a threaded sleeve, a core storage tube, a button, a clamping head, a locking ring, a spring and a chopstick head. The threaded sleeve is in threaded connection with the hollow chopstick rod, and the core storage tube is sleeved in the hollow chopstick rod and the threaded sleeve. The core storage tube at the top of the telescopic chopstick extends out of the hollow chopstick rod, and the button is installed at the upper portion of the core storage tube. The core storage tube at the bottom of the telescopic chopstick is in threaded connection with the clamping head, the bottom of the clamping head is sleeved by the locking ring, and the clamping head between the core storage tube and the locking ring is sleeved by the spring. The chopstick head is stored in the core storage tube. By adopting the control mode, a user going out can conveniently carry the telescopic chopstick, the telescopic chopstick can be popularized to the catering industry, and waste of disposable chopstick materials can be reduced. In addition, different demands for chopstick length of adults and children can be met. The telescopic chopstick is simple, attractive, convenient to use, protects environment, saves energy and facilitates large-range usage and popularization.