A multi-screen interaction method being a method for sharing presented content on a source device and a target device simultaneously, the method comprising: • monitoring, by the source device, a query message broadcast to a first Internet Protocol, IP, address in a local area network by the target device after the target device accesses the local area network where the source device is located, wherein the query message is used to query whether a device supporting the multi-screen interaction exists in the local area network; • reporting, by the source device, to a network server that multi-screen interaction with the target device is to be performed; • sending, by the source device, a device identity of the source device to the target device that accesses the local area network where the source device is located, and receiving device parameters of the target device that are sent by the target device, wherein the device parameters of the target device are at least one of a service type supported by the target device, a media format supported by the target device, and a resolution of the target device (step 101); • sending, by the source device, media information of media content that is being played by the source device to the target device (step 102); • requesting, by the target device, the media content from the network server according to the media information and at least one of the service type supported by the target device, the media format supported by the target device, and the resolution of the target device (step 103); • sending, by the network server according to the at least one of the service type supported by the target device, the media format supported by the target device, and the resolution of the target device, the media content to the target device (step 104); • after the media content sent by the network server is received, querying, by the target device, according to the device identity of the source device, the source device for a play state of the media content that is being played by the source device; • receiving, by the target device, the play state of the media content that is being played by the source device, and playing, by the target device, the media content of the target device according to the play state (step 105). • monitoring, by the source device, a query message broadcast to a first Internet Protocol, IP, address in a local area network by the target device after the target device accesses the local area network where the source device is located, wherein the query message is used to query whether a device supporting the multi-screen interaction exists in the local area network; • reporting, by the source device, to a network server that multi-screen interaction with the target device is to be performed; • sending, by the source device, a device identity of the source device to the target device that accesses the local area network where the source device is located, and receiving device parameters of the target device that are sent by the target device, wherein the device parameters of the target device are at least one of a service type supported by the target device, a media format supported by the target device, and a resolution of the target device (step 101); • sending, by the source device, media information of media content that is being played by the source device to the target device (step 102); • requesting, by the target device, the media content from the network server according to the media information and at least one of the service type supported by the target device, the media format supported by the target device, and the resolution of the target device (step 103); • sending, by the network server according to the at least one of the service type supported by the target device, the media format supported by the target device, and the resolution of the target device, the media content to the target device (step 104); • after the media content sent by the network server is received, querying, by the target device, according to the device identity of the source device, the source device for a play state of the media content that is being played by the source device; • receiving, by the target device, the play state of the media content that is being played by the source device, and playing, by the target device, the media content of the target device according to the play state (step 105).