The invention mainly provides a plant root cutting device, including a cutter module, a track module and a power module； the cutter module includes a plurality of cutter groups； the track module includes at least two tracks, which are arranged in parallel, and the cutter module spans between the two tracks； the power module is connected with the cutter module and the track module. With the new type of root shear device, the root shear can be carried out quickly and the recovery efficiency can be improved.本創作主要提供一種植物根系剪切裝置，包含刀具模組、軌道模組及動力模組；刀具模組包含有複數個刀組；軌道模組包含至少兩軌道，兩軌道平行設置，刀具模組橫跨於兩軌道之間；動力模組與刀具模組及軌道模組連接。藉由本新型的植物根系剪切裝置，可快速進行植物根系的剪切，提高採收效率。
