The invention discloses a telephone line take-up device, which comprises a sliding chute base, a guide wheel, a rack, a sliding block assembling component, a shaft sleeve, a telephone line, a tension spring and a sliding chute upper cover, wherein the sliding block assembling component is composed of a gear, a sliding block, a self-locking shaft sleeve, a pulley, a circular shaft, a steel ball and a bearing; the telephone line, which is connected to a telephone set, can move in the sliding chute upper cover through a roller and the shaft sleeve, thereby realizing a telephone line pull-out function; and the tension spring provides a restoring force for the sliding block assembling component, thereby being capable of realizing a telephone line take-up function. According to the invention, when the sliding block assembling component is matched with the sliding chute base to slide, the telephone line is enabled to be smooth in pull-out and take-up operations through gear-rack engagement rolling, and the user experience is improved. In addition, the telephone line take-up device does not need to use an electric brush, thereby avoiding telephone distortion caused by usage of the electric brush.