Service flow control method, device, equipment and medium

The invention discloses a service flow control method and device, equipment and a medium, and relates to the technical field of flow control. The method comprises the following steps: when a service is registered and accessed, setting a corresponding service level; when the application subscribes to the service capability, the level of calling the service by the application is set, and the level of calling the service by the core application is higher than the level of calling the service by the non-core application; when the application requests to call the service, comparing the level of calling the service by the application with the service level corresponding to the service, and when the level of calling the service by the application is greater than or equal to the service level corresponding to the service, allowing the application to normally access the back-end service; when the level of calling the service by the application is smaller than the service level corresponding to the service, the request