To provide a work device which can properly process (consume) the regenerative power generated in a motor, and prevent the generation of the regenerative power from adversely influencing the output of the work device.SOLUTION: A work device connected to a travel vehicle provided with an engine for performing the farm work includes: a work part which performs the farm work； a motor which is driven with the power； a power transmission mechanism to which the power generated with the driving of the motor is input, and which transmits the input power to the work part； a regenerative resistor which consumes the regenerative power generated in the motor； a switching part which switches the connection state and the shutdown state of the motor and the regenerative resistor； and a control part which controls the driving of the motor and the switching operation of the switching part.SELECTED DRAWING: Figure 19【課題】電動機に発生する回生動力を適切に処理（消費）することができ、回生動力の発生が作業装置の出力に悪影響を及ぼすことを防止できる作業装置の提供。【解決手段】原動機を備えた走行車両に連結されて農作業を行う作業装置であって、農作業を行う作業部と、電力により駆動する電動機と、電動機の駆動により生じる動力が入力され、且つ入力された動力を作業部に伝達する動力伝達機構と、電動機に発生した回生動力を消費する回生抵抗と、電動機と回生抵抗との接続状態と遮断状態とを切り換える切換部と、電動機の駆動及び切換部の切り換え動作を制御する制御部と、を備えている。【選択図】図１９
