The present invention provides a signal intensity based live video data transmission error control method. By calculating the ratio of video data packages which do not arrive at a mobile terminal in time, the network states of the mobile terminal are divided into a fluctuation state and an emergent high loss state, and for different network states, different error control mechanisms are employed. When the network of the mobile terminal is in the fluctuation state, a dynamic FEC (forward error correction) strategy based on signal intensity is used. When the network of the mobile terminal is in the emergent high loss state, a delay-restricted selective mixing automatic repeat request strategy is used based on signal intensity. The method provided by the invention can effectively reduce the loss in the transmission process of live video data, thereby improving the visual experience of mobile terminal users for live video.