This application discloses a video source switching method, a playing method, an apparatus, a device, and a storage medium. The video source switching method includes obtaining switching information; determining a first key frame of a first video source according to the switching information, the first key frame being a next key frame of a current playing time of the first video source; querying a first time value of the first key frame; identifying a second video source according to the switching information; and switching video sources if a distance between a current time value of the second video source and the first time value is less than or equal to a threshold.