The invention discloses a video playing method and device based on video aggregation. The video playing method and device based on video aggregation are used for solving the problems that a third-party application cannot acquire video resources provided by a lot of video providers through playing addresses, and the video resources of the different video providers cannot be switched over are solved. The method includes the steps of obtaining aggregation metadata of a video file from a cloud server and determining a first target player when a playing instruction is received, obtaining a first identification code corresponding to the first target player, starting the first target player through the first identification code, playing the first video resource, selecting the second video resource matched with a current network situation when the network situation changes, regarding the player playing the second video resource as a second target player, obtaining a second identification code corresponding to the second target player, starting the second target player through the second identification code, and playing the second video resource continuously the moment when playing of the first video resource is finished.