The invention relates to the field of agriculture, and particularly relates to a tobacco leaf picking monitoring method. The tobacco leaf picking monitoring method comprises the following steps: weighing lengths of tobacco leaves to be picked to obtain length values; measuring the foliar damage ratio of the tobacco leaves to be picked to obtain damage values; obtaining the mature color ratio of the tobacco leaves to be picked; and analyzing according to the length values, the damage values and the mature color ratio to obtain a monitoring result, wherein the monitoring result comprises picking of the tobacco leaves or no picking of the tobacco leaves. The tobacco leaf picking monitoring method provided by the invention can facilitate the industrialized cyclic operation, improve science and accuracy in tobacco leaf picking and further improve the quality of flue-cured tobacco.