The present disclosure discloses a congestion control method, a terminal and a readable storage medium. The congestion control method includes: identifying, in response to that a congestion phenomenon occurs in data transmission of a downstream device, a congestion flow causing the congestion phenomenon; acquiring identification information of the congestion flow, and packaging the identification information in a congestion control notification message; and sending the congestion control notification message to an upstream device that performs a congestion control operation according to the congestion control notification message.