The invention provides an MAP (
modified atmosphere packages) preservation method for picked broccoli. The MAP preservation method comprises the following steps: (1) pretreatment of the picked broccoli: fresh and healthy broccoli without apparent damage is subjected to rapid precooling treatment after picking, and the
core temperature is reduced to 0-1 DEG C; (2) preserved MAP: single precooled broccoli or multiple pieces of precooled broccoli are loaded into a
polyethylene preservation packaging bag for sealed packaging, the O2
permeability coefficient of the
polyethylene preservation packaging bag is 10,000-20,000 cm<3> / m<2>.24h.0.1 MPa, the CO2
permeability coefficient of the
polyethylene preservation packaging bag is 6,000-8,000 cm<3> / m<2>.24h.0.1 MPa, and the
water vapor transmission of the polyethylene preservation packaging bag is 20-30 g / m<2>.24h; (3)
cold storage for preservation: the bagged broccoli subjected to preservation packaging treatment with the polyethylene preservation packaging bag is stored, transported or sold in a
cold storage preservation storehouse or a
cold storage wagon at the temperature of 0-1 DEG C. The method is simple and convenient to operate, quality deterioration phenomena such as withering and water loss, green
fading and yellowing of
inflorescence, rot, deterioration and the like of the fresh broccoli after picking can be relieved effectively, special
nutrition and
flavor of the broccoli in the storage period are kept, the
shelf life is prolonged, and popularization and application are easy.