PROBLEM TO BE SOLVED: To provide a scatter prevention device moving together with a work vehicle without loads on a plurality of workers to prevent scatter of stones, plants, or the like even if a range for preventing the scatter of the stones, the plants, or the like is very wide, when performing mowing/cutting work of weeds, useless small trees, or the like by the work vehicle such as a hydraulic shovel, to provide the work vehicle including the scatter prevention device, and to provide a scatter prevention method.SOLUTION: A fence support 61 is attached to a side of a lower traveling body 2 of a hydraulic shovel 1 mounted with a mower to an upper turn structure 3 turnably installed on the lower traveling body 2, and the fence support 61 is made to support a protective fence 62.COPYRIGHT: (C)2015,JPO&INPIT【課題】油圧ショベルなどの作業車両により雑草や雑木などの刈り取り作業を行う際、石や草木等の飛散を防止する範囲が非常に広い場合であっても、複数の作業者の負担なく作業車両とともに移動して石や草木等の飛散を防止することが可能な飛散防止装置およびこれを備えた作業車両ならびに飛散防止方法の提供。【解決手段】下部走行体2上に旋回可能に設置された上部旋回体3に草刈り機が装着された油圧ショベル1の下部走行体2の側方にフェンス支持具61を取り付け、フェンス支持具61に防護フェンス62を支持させる。【選択図】図6