For the durable flame retardance polyester fabrics were treated by pad-dry-cure method with the aqueous dispersion solution of a mixture of bromine compounds/antimony trioxide(mole ratio of or to Sb=3:1) using a binder. The aromatic bromine compounds with a relatively high bromine contents such as decabromodiphenyl oxide, octabromodiphenyl oxide, hexabromo-cyclododecane, pentabromotoluene, and hexabromobenzene were used. The values of treated fabrics increased linearly with Br contents except HBCD in which the flame-retardant efficiency of Br slowed down after 9% o.w.f. Treated fabrics showed a reasonable flame retardancy after repeated home launderings. The stiffness of treated fabrics were influenced by the melting point of bromine compounds.