Provided is a new method for manufacturing a composition containing a poorly water-soluble aromatic compound, wherein the dissolution of the poorly water-soluble aromatic compound (component (A) of the present invention) in water is excellent. The method for manufacturing a composition containing a poorly water-soluble aromatic compound includes a step in which the following are heat-treated at a temperature of 100-180 DEG C in the presence of an aqueous medium: (A) a poorly water-soluble aromatic compound (B) a divalent alcohol and (C) an alcohol that is at least trivalent.本發明提供一種製造水難溶性芳香族化合物(本發明之成分(A))對水之溶解性優異的含有水難溶性芳香族化合物之組合物的新穎方法。本發明之含有水難溶性芳香族化合物之組合物之製造方法包含如下步驟:於水性介質之存在下,將(A)水難溶性芳香族化合物、(B)二元醇及(C)三元以上之醇於100~180℃下進行加熱處理。
