The invention relates to an automatic subpackage method for three-phase electric energy meter narrow-band carrier modules. Automatic logistics and automatic warehousing are achieved, the blank of metering automatic packing of the state grid carrier modules is filled, the manual unstacking and stacking time can be saved, people are free from burdensome unstacking and stacking, at the same time, thepacking speed is increased, the accuracy rate is increased, the packing cost is saved, the space utilization rate is increased, manual participation is reduced, the product packing efficiency can begreatly improved.