The application provides methods, devices and a system of live-streaming content processing. The system includes: an anchor client, which is used for generating a recording starting instruction according to speech contents issued by an anchor, and sending the same to a service end; the service end, which is used for starting video recording according to the recording starting instruction, carryingout data association on recorded video data and a question to generate a question answering video carrying the question, and sending the question answering video to an audience client; and the audience client, which is used for receiving the question answering video, and displaying the question answering video on a live-streaming page. Therefore, the technical solution provided by the applicationcan implement mining on the question answering video in a live-streaming process, maximize a value of live-streaming contents on the basis of the question answering video, avoid data resource waste,and improve live-streaming experience of a user.