The invention relates to the technical field of computers, and particularly relates to a traffic control method, system and device, and a computer readable storage medium. According to the method, thecurrent number of tokens is compared with a required transmission bandwidth, when the bandwidth is sufficient, a compression algorithm with a low compression rate is adopted to reduce the loss of data information entropy, when the bandwidth is limited, a compression algorithm with a high compression rate is adopted to adapt to the effective transmission of the bandwidth, no priority differentiation or weight packet management needs to be performed on message streams with different delays, the problem of invalid fragments caused by the bandwidth limitation is avoided, the situation in the traditional abandoning mechanism that a large number of messages are directly abandoned and requested for retransmission, resulting in great jitter of the network transmission rate, is avoided, it is ensured that in a network with a variable packet length, when the data input amount is greater than the supervision traffic, the data packets with different lengths can pass at an equal probability without complicated overall scheduling, it is ensured that fragments transmitted on the link are all valid while accurately limiting the traffic, so that the message abandoning probability is reduced and even eliminated, and the times of message retransmission are reduced on the premise of making full use of the bandwidth.