Abstract: In this paper, a series of oil-absorbing polyurethane foam were prepared from polyether polyols, hydrophilic dihydric alcohol, triethylene diamine, DOPO-HQ, and toluene diisocyanate（TDI). The effect of DOPO-HQ content on the tensile strength, oil absorption, and flame retardant property was investigated. It showed that the tensile strength of the polyurethane foam first increased then decreased, oil absorption decreased with increasing concentration of DOPO-HQ. The limited oxygen index of the polyurethane foam increased from 18.2 to 27.2 % with the amount of DOPO-HQ increased from 0 to 12phr.