Embodiments of the present disclosure provide a flexible task scheduling method, device, apparatus, and computer-readable storage medium. The flexible task scheduling method includes placing a targettask in a queue and checking a task in the queue in response to a received task control request; taking the tasks in the queue, reading the resource value required by the tasks, and sending out the resource application request; Retrieving whether an idle resource exists in the resource pool in response to a resource application request; When an idle resource is retrieved from the resource pool, allocating idle resources according to the resource value required for the task specified in the resource application request, wherein the resource is sliced according to the resource value needed by the task, and the relationship between the resource slicing and the proxy instance is established. The one-to-one mapping between the proxy instance and the resource instance can dynamically calculatethe resource requirement of the task, and can also be statically configured, so that the idle resource in the resource instance can be selected according to the requirement. That is, tasks of different sizes can be executed alternately using idle resources.