To facilitate dispersion of an epipastic.SOLUTION: A dispersion support system comprises: a plan creation part for creating a dispersion plan including a dilution magnification of an epipastic; a plan acquisition part which is provided on a spreader for dispersing the epipastic, and which acquires the dispersion plan created by the plan creation part; and a generator for generating the epipastic based on the dilution magnification in the dispersion plan acquired by the plan acquisition part. The dispersion support system comprises a controller provided on the spreader for controlling the generator so that the dilution magnification of the epipastic becomes a prescribed value.SELECTED DRAWING: Figure 1【課題】散布剤の散布を簡単に行うことができるようにする。【解決手段】散布支援システムは、散布剤の希釈倍率を含む散布計画を計画する計画作成部と、散布剤を散布する散布機に設けられ且つ、計画作成部で作成された散布計画を取得する計画取得部と、計画取得部で取得した散布計画の希釈倍率に基づいて、散布剤を生成する生成装置と、を備えている。散布支援システムは、散布機に設けられ、且つ散布剤の希釈倍率が所定値になるよう生成装置を制御する制御装置を備えている。【選択図】図1