A flat parcel sorting assistance method, including: acquiring a code scanning result of a flat parcel to be sorted at a code scanning position; moving the flat parcel to be sorted to a parcel supply position when it is determined, based on the code scanning result, that a quantity of the flat parcels to be sorted meets a preset quantity condition; acquiring first image information of the flat parcel to be sorted that is collected at the parcel supply position; moving the flat parcel to be sorted to a sorting equipment when it is determined, based on the first image information, that the quantity of the flat parcels to be sorted meets the preset quantity condition and a pose thereof meets a preset pose condition; acquiring second image information of the flat parcel to be sorted that is collected at the sorting equipment; performing a sorting operation.