The invention discloses a roving tail yarn processing device which comprises a bobbin lifting transmission device, a sucking nozzle lifting transmission device and a pressing cover device, wherein the bobbin lifting transmission device comprises a plurality of bobbin lifting mechanisms disposed on a rack, each bobbin lifting mechanism comprises a shell body disposed on the rack, and a sleeve is disposed inside the shell body; a lifting rod is disposed inside the sleeve, a bobbin bracket is disposed on the upper end of the lifting rod, and the bobbin bracket is contacted with the bottom part of a bobbin; a transmission belt wheel is disposed on the upper end of the sleeve, a jack-up device is disposed under the shell body, and the upper end of the jack-up device passes through the shell body to be contacted with the bottom end of the lifting rod; and a group of guide uprights are disposed on the rack, lifting plates which can move up and down are disposed among the guide uprights, the lifting plates are connected to the lifting mechanisms, a plurality of sucking nozzle structures are disposed on the lifting plate, and each sucking nozzle mechanism is respectively corresponding to a bobbin. Tail yarns can be removed automatically from the bobbin lifted by a bobbin hanger, so the roving tail yarn processing device can take the place of manual removal of the tail yarns on the roving bobbin. The roving tail yarn processing device has high degree of automation, can greatly reduce labor strength and can increase spinning efficiency.