The invention discloses a multipath sheet-like material converging sorting method and a device. The device comprises two or more input ends used for separating sheet-like material piles, all the input ends are accessed to a main transmission channel through respective sub transmission channel, the main transmission channel is provided with a detector used for detecting quality of sheet-like materials, or each sub transmission channel is respectively provided with a detector used for detecting the quality of the sheet-like materials, and the tail end of the main transmission channel is sequentially provided with multiple collection bins used for collecting the sheet-like materials having different quality attributes. According to the multipath sheet-like material converging sorting device, the sheet-like materials are inputted through the multiple input ends, the input speed of the sorting device can be improved by times, the sheet-like materials inputted in multi-paths can be merged and sorted in combination with detection results acquired through the various sheet-like material quality detectors in the sorting devices, so sorting efficiency of the sorting device can be greatly improved, and production cost is reduced.