Disclosed are a method and system for microphone-connection live broadcast of a live-broadcast platform, said method comprising: determining whether a broadcast anchor is a microphone-connection live broadcast; if said anchor is determined to be a microphone-connection live broadcast, then cropping the video sources of a microphone-connection terminal and a microphone-connected terminal to form a video having a predetermined format; detecting a display device and display mode of a guest terminal; according to the display device and display mode of the guest terminal, selecting a video of a microphone-connection terminal and microphone-connected terminal that complies with the format of the display device and display mode of said guest terminal; thus the video of the microphone-connection terminal and microphone-connected terminal is displayed on the display device of the guest terminal in microphone-connection mode. By the described means, the present invention is capable of flexibly displaying, on the display device of the guest terminal, the video of the microphone-connection terminal and the microphone-connected terminal and providing a technical basis, and thus the video of the microphone-connection terminal and microphone-connected terminal may be displayed on the display device of the guest terminal in microphone-connection mode.
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