A method, device, and electronic terminal for video recording are provided. The method includes: receiving streaming data of a video, and decoding and broadcasting of the video on a webpage of a browser through a video-playing plugin; based on a triggering operation for starting video recording detected on the webpage by the browser, acquiring first image data and first audio data outputted by the video-playing plugin through a data interaction interface between the video-playing plugin and the browser; encoding the first image data and the first audio data to generate second image data and second audio data; synthesizing the second image data and the second audio data to generate and store streaming data of a recorded video.