PROBLEM TO BE SOLVED: To easily check a residual quantity of a spray agent such as a fertilizer.SOLUTION: A work support system includes a spray device provided to a travelling vehicle body, which includes a container capable of holding a spray agent, a detection device for detecting a travelling state of the travelling vehicle body based on a satellite signal from a positioning satellite, a state acquisition part for acquiring the travelling state detected by the detection device, an input quantity acquisition part for acquiring an input quantity of the spray agent input in the container, a spray quantity acquisition part for acquiring a spray agent spray quantity, a calculation part for obtaining a residual quantity of the spray agent in the container based on the travelling state acquired by the state acquisition part, the input quantity acquired by the input quantity acquisition part, and the spray quantity acquired by the spray quantity acquisition part, and a display part for displaying the residual quantity obtained at the calculation part.SELECTED DRAWING: Figure 1【課題】容易に肥料等の散布剤の残量を確認することができる。【解決手段】作業支援システムは、走行車体に設けられ、且つ、散布剤を貯留可能な容器を有する散布装置と、測位衛星からの衛星信号に基づいて走行車体の走行状態を検出する検出装置と、検出装置で検出された走行状態を取得する状態取得部と、容器に投入した散布剤の投入量を取得する投入量取得部と、散布剤の散布量を取得する散布量取得部と、状態取得部が取得した走行状態、投入量取得部が取得した投入量及び散布量取得部が取得した散布量に基づいて、容器内の散布剤の残量を求める演算部と、演算部で求めた残量を表示する表示部と、を備えている。【選択図】図１
