The invention provides an automatic transmission fluid combination comprising base oil of main amount and additive of minor amount. The combination comprises the following components by taking the gross weight of the combination as benchmark: (a) at least one amine salt of organic phosphate; (b) at least one dispersant; (c) at least one antioxidant; (d) at least one detergent; (x) allowance of the base oil of synthesized lubricating oil. Due to the combined use of the amine salt of organic phosphate of a new structure with the ashless dispersant, the antioxidant and the detergent, the automatic transmission fluid provided by the invention has good antiwear ability and friction property, thus according with Dexron III and Allison C-4 specification requirements.