Embodiments of the present invention disclose a task scheduling method, apparatus, and device, where the method includes: acquiring information about an available computing resource used for task execution; when a configured task set is received, determining resource consumption information of each task in the task set; and comparing the resource consumption information of each task in the task set with the information about the available computing resource, and determining a task that is in the task set and whose corresponding comparison result meets a preset task scheduling condition as a target task. In addition, a generated task scheduling diagram includes information such as tasks, dependence between the tasks, resource consumption information, and execution progress of a target task. By using the present invention, task scheduling can be optimized, so that task scheduling optimization is more intuitive, thereby improving processing performance of a data warehouse.