The invention discloses a method and equipment for determining the task dispatching time. According to the method, the relying relationship between a first task and a second task is judged; when the condition that the first task relies on the second task is determined, the dispatch time granularity relationship of the first task and the second task is judged; when the dispatching time granularity of the first task is not equal to the dispatching time granularity of the second task, the dispatching time of the task with the thicker dispatching time granularity in the first task and the second task is used for dispatching the first task; when the dispatching time granularity of the first task equals to the dispatching time granularity of the second task, the relationship of the first time dispatching time of the first task and the second task is judged; the dispatching time of the task with the later first time dispatching task in the first task and the second task is used for dispatching the first task. Meanwhile, the invention also provides a method for determining the task execution time and a method and equipment for determining the task execution time for each task in the network. Through the method and the equipment provided by the invention, the complicated relying relationship can be simplified through a dispatching mechanism, so that the task dispatching becomes simple, feasible, correct and efficient.