The invention discloses a device and method for packaging quick-frozen fruits and vegetables, and relates to the technical field of fresh food packaging. The device comprises a conveying belt, the conveying belt is provided with a plurality of charging buckets, and a suspension frame is arranged above the conveying belt; a bag placing mechanism, a feeding mechanism, a bouncing mechanism, a heat sealing mechanism and a discharging mechanism are sequentially arranged at the bottom of the suspension along a conveying line of the conveying belt, the bag placing mechanism comprises a first shell, a film barrel and a transmission wheel are symmetrically arranged in the first shell, a bag film is wound on the film barrel, and the end, away from the film barrel, of the bag film is fixedly connected with the transmission wheel. A first hydraulic cylinder is arranged over the bag film, the output end of the first hydraulic cylinder is fixedly connected with a push column, and a film outlet is fixedly formed in the bottom of the first shell. According to the fruit and vegetable bagging device, the shape of the bag film can be automatically controlled, the bag film is cylindrical, fruits and vegetables can be stably wrapped, the bagging stability is improved, manual operation is not needed, and the production efficiency is improved.