Since the large-scale ice disaster occurred in 2008, DC ice melting technology has gradually become a common configuration for substations in medium and heavy ice-covered areas of China, which has become the most effective measure for transmission lines to resist large-scale ice-covered disasters in winter. However, it has been found that many communication links and low ice melting wiring efficiency exist in DC ice melting operation process, causing the transmission line to take too long from outage to resumption. Aiming at the existing problems, the time-consuming characteristics of various wiring forms of ice-melting transmission lines that have been carried out in the past of Guizhou Power Grid are obtained: the dispatcher command model is inefficient in melting ice due to too many communication links. In order to improve work efficiency, this paper proposes an ice melting work-group model that gives transmission line management authority to the person in charge of on-site ice melting work. The advantages of the ice melting work-group mode in the efficiency of ice melting on transmission lines are verified by comparing the two modes in terms of time consumption in engineering application. Finally, for the long time-consuming operation process of Ice-melting wiring operations, a one-key sequence control is proposed, the transformation requirements for substation are given and the efficiency of the method is verified, which has guiding significance for the further improvement of deicing efficiency in the future.