A projection connection control method, a projection connection being a connection in which streaming media content being played on a transmit end device is transmitted to a receive end device for the receive end device to play the content in real time, the method comprising obtaining, by the transmit end device, preemption capability information of the receive end device, wherein the preemption capability information indicates whether the receive end device supports projection connection preemption, wherein if the receive end supports projection connection preemption, in response to receiving a new projection connection request, the receive end releases an existing projection connection and forms a new projection connection as per the new projection connection request, and if the receive end does not support projection connection preemption, in response to receiving a new projection connection request, the receive end does not release an existing projection connection and does not form a new projection connection as per the new projection connection request; and in response to determining that the receive end device supports projection connection preemption, sending, by the transmit end device, first configuration information to the receive end device in response to a user instruction, wherein the first configuration information indicates the receive end device to configure the receive end device to not support projection connection preemption; wherein the sending, by the transmit end device, first configuration information to the receive end device in response to a user instruction comprises: sending, by the transmit end device, a connection request to the receive end device in response to a first user instruction, wherein the connection request is used by the transmit end device to establish a projection connection to the receive end device, and the connection request carries the first configuration information; or when a projection connection is established between the transmit end device and the receive end device, sending, by the transmit end device, the first configuration information to the receive end device in response to a second user instruction; and wherein the method further comprises: sending, by the transmit end device, second configuration information to the receive end device in response to a third user instruction, wherein the second configuration information indicates the receive end device to configure the receive end device to support projection connection preemption. obtaining, by the transmit end device, preemption capability information of the receive end device, wherein the preemption capability information indicates whether the receive end device supports projection connection preemption, wherein if the receive end supports projection connection preemption, in response to receiving a new projection connection request, the receive end releases an existing projection connection and forms a new projection connection as per the new projection connection request, and if the receive end does not support projection connection preemption, in response to receiving a new projection connection request, the receive end does not release an existing projection connection and does not form a new projection connection as per the new projection connection request; and in response to determining that the receive end device supports projection connection preemption, sending, by the transmit end device, first configuration information to the receive end device in response to a user instruction, wherein the first configuration information indicates the receive end device to configure the receive end device to not support projection connection preemption; wherein the sending, by the transmit end device, first configuration information to the receive end device in response to a user instruction comprises: sending, by the transmit end device, a connection request to the receive end device in response to a first user instruction, wherein the connection request is used by the transmit end device to establish a projection connection to the receive end device, and the connection request carries the first configuration information; or when a projection connection is established between the transmit end device and the receive end device, sending, by the transmit end device, the first configuration information to the receive end device in response to a second user instruction; and wherein the method further comprises: sending, by the transmit end device, second configuration information to the receive end device in response to a third user instruction, wherein the second configuration information indicates the receive end device to configure the receive end device to support projection connection preemption. sending, by the transmit end device, a connection request to the receive end device in response to a first user instruction, wherein the connection request is used by the transmit end device to establish a projection connection to the receive end device, and the connection request carries the first configuration information; or when a projection connection is established between the transmit end device and the receive end device, sending, by the transmit end device, the first configuration information to the receive end device in response to a second user instruction; and wherein the method further comprises: sending, by the transmit end device, second configuration information to the receive end device in response to a third user instruction, wherein the second configuration information indicates the receive end device to configure the receive end device to support projection connection preemption.