The invention discloses a self-adaptation flow control method suitable for wireless projection system real-time data transmission. The method includes the following steps: 1, a low pass filter is introduced in to calculate a smooth packet loss rate; 2, according to a network packet loss rate fed back by a receiving end, a network band width is divided into a jam state, an idle state and a full-load state; 3, the network state is judged to adjust transmitting speed in real time, if the network state is of the jam state, the transmitting speed is reduced and if the network state is of the idle state, the transmitting speed is increased, a loss rate of a smooth packet passing through the low pass filter is recalculated at the current moment to prepare judgment of the network state next time, and if the network state is of the full-load state, through calculation of integral marked quantity of transmission delay and delay jitter of a network, the transmitting speed is adjusted; and 4, a loss rate of a smooth packet passing through the low pass filter is recalculated at the current moment to prepare judgment of the network state next time. According to the self-adaptation flow control method suitable for the wireless projection system real-time data transmission, adjustment errors and large-margin shocking of the transmitting speed are reduced, the defects that an application flow is strong in burstiness, large in jitter and the like are overcome, and the transmission service quality is improved.