A message control method, a flow table update method, and a node device are disclosed. The node device includes a first
queue and a second
queue. The method includes: the node device acquiring a first message; the node device determining that the data flow to which the first message belongs is marked as an isolated flow; if the first
queue and / or the second queue meet a first preset condition, the node device controlling the first message to enter the first queue for scheduling; if the first queue and / or the second queue meet a second preset condition, the node device controlling the first message to enter the second queue for scheduling. In this way, the node device can flexibly control which queue a message from a data flow marked as an isolated flow enters.