PROBLEM TO BE SOLVED: To provide a new method to produce a poorly water-soluble aromatic compound-containing composition having excellent solubility in water.SOLUTION: A method to produce a poorly water-soluble aromatic compound-containing composition comprises the step of heat-treating (A) a poorly water-soluble aromatic compound, (B) polyol and (C) a water-soluble aromatic compound at 100-180°C in the presence of aqueous medium.