The invention discloses a printing control method. The printing control method comprises the steps of receiving multiple queued printing tasks; analyzing the current printing task and the next printing task so that a first work amount and a second work amount can be obtained; when it is judged that the sum of the first work amount and the second work amount is greater than a set threshold value, after execution of the current printing task is completed, delaying execution of the next printing task; when it is judged that the second work amount is greater than a set threshold value, calling a mapping table of the work load and the printing speed, dividing the next printing task into multiple continuous sub-tasks, and controlling the printing speed according to the mapping table and the second work amount; after execution of the current sub-task is completed, delaying execution of the next sub-task; analyzing the printing task after the next so that a third work amount can be obtained; and when it is judged that the sum of the final sub-task and the third work amount is greater than a set threshold value, after execution of the final sub-task is completed, delaying execution of the printing task after the next.