Synchronous display method and system of playing equipment and storage medium

The invention provides a playing device synchronous display method and system and a storage medium, and the method comprises the steps: enabling a plurality of playing devices to obtain the own master and slave identities under the condition that the plurality of playing devices synchronously play videos, and enabling the plurality of playing devices to comprise a master playing device and a plurality of slave playing devices; the master playing device sends a first synchronization signal to each slave playing device according to the first interval time; and each slave playing device generates a corresponding second synchronizing signal according to the received first synchronizing signal, and triggers a respective display control module of each slave playing device through the second synchronizing signal to send the to-be-played video frame to a display screen for display. Based on the method, on the basis of playing synchronization, the synchronization signals of all the playing devices can be unified, it i