In the title compound, [UO2(DBM)2 (H2O)]2. (dicyclohexyl-18-crown-6)2CHCl3 or [UO2(C30H22O4)2(H2O)]2.C20H36O6-2CHCl3, where BM is 1,3-diphenylpropane-1,3-dionate, the UVI atom is coordinated by seven O atoms to give a distorted pentagonal bipyramidal geometry. The structure is entrosym-metric. The 18-crown-6 molecule is hydrogen bonded (O–H•••O) by the water molecule of [UO2(DBM)2(H2O)], and these binuclear units are interconnected by C–H•••O interactions.