A method for allocating a resource for storing visualization information, an apparatus, and a system are provided. The method includes: a first network device determines a first queue based on a constraint condition, where the first queue is a queue that needs to be visualized. Then, the first network device allocates a first storage resource to the first queue, where the first storage resource is used to store visualization information of the first queue, and the visualization information is information used to visualize the first queue. Therefore, occupation of storage resources in the first network device is reduced.