The invention discloses a production technology of radix puerariae tea. The production technology comprises 9 making technological processes of performing screening and first washing, performing peeling and cleaning, performing airing, performing cutting into slices, performing cutting into dices, performing primary dehydrating and drying, performing secondary drying and sterilization, performingpackaging with inner bags and performing external packaging. The production technology specifically comprises the following steps of performing primary cleaning: selecting radix puerariae which is free from mildew and rot and free from insect holes in appearance, and is not deteriorated, rejecting the radix puerariae of which the crusts are in drying shrinkage, placing the treated radix puerariaein a soaking pond, adding circulating water until the radix puerariae is immersed, performing soaking for 3-4 hours, then fishing out the soaked radix puerariae, and flushing silt on the surfaces of the fished-out radix puerariae with a high-pressure water torch until the crusts are clean and free from dirt; and performing peeling and cleaning: putting the flushed radix puerariae in a peeler special for radix puerariae, performing cleaning and crust grinding, removing the crusts of the radix puerariae, then performing thorough flushing with the high-pressure water torch, and placing the flushed radix puerariae on a rack. According to the production technology disclosed by the invention, through setting 9 making technological processes of performing screening and first washing, performing peeling and cleaning, performing airing, performing cutting into slices, performing cutting into dices, performing primary dehydrating and drying, performing secondary drying and sterilization, performing internal packaging and performing external packaging, the produced radix puerariae tea is red bright in soup color, sweet in aftertaste and rich in fragrance.