Provided is a durable work vehicle wherein a second work unit mounted to a rear part of a first work unit is spaced rearwardly apart from the first work unit by a simple operation without the need of a large rear space. A rice transplanter 1 is provided with: a travel machine body 2 a planting unit 20 connected to a rear part of the travel machine body 2 and a first applicator 85 and a second applicator 101 mounted to the planting unit 20. The first applicator 85 and the second applicator 101 are mounted to a rear part of the planting unit 20 via a parallel link mechanism 126 with connection shafts 161, 162 extending in the up-down direction as support shafts so that the first applicator 85 and the second applicator 101 are movable in the front-rear direction.為了提供一種作業車輛,於後方無須大空間且通過輕易的作業就能使安裝於第1作業部之後部的第2作業部從第1作業部朝後方分離,並且耐久性良好。插秧機(1)係具備:行走機體(2)、連結於行走機體(2)之後部的種植部(20)、安裝於種植部(20)的第1散佈裝置(85)以及第2散佈裝置(101),第1散佈裝置(85)及第2散佈裝置(101),係透過以朝上下方向延伸的連結軸(161、162)作為支軸的平行連桿機構(126)而可朝前後方向移動地被安裝於種植部(20)的後部。21‧‧‧載苗台26‧‧‧種植框架27‧‧‧主框架28a‧‧‧種植傳動箱28b‧‧‧種植傳動箱28c‧‧‧種植傳動箱28d‧‧‧種植傳動箱85‧‧‧第1散佈裝置(第2作業部)101‧‧‧第2散佈裝置(第2作業部)126‧‧‧平行連桿機構127‧‧‧開放式框架128‧‧‧底座框架129a‧‧‧連桿臂129b‧‧‧連桿臂130‧‧‧前框架131‧‧‧後框架132a‧‧‧連結框架132b‧‧‧連結框架132c‧‧‧連結框架133a‧‧‧支承框架133b‧‧‧支承框架133c‧‧‧支承框架133d‧‧‧支承框架134‧‧‧支承部139‧‧‧把持部140‧‧‧緊固鎖142‧‧‧遮蔽蓋161a‧‧‧連結軸161b‧‧‧連結軸162a‧‧‧連結軸162b‧‧‧連結軸170‧‧‧限制突起
