The invention relates to a disperse yellow and disperse orange dye composition, which is prepared by mixing and blending raw dyes and assistant agents, wherein the raw dyes comprise 1-99 wt% of a component A and 1-99 wt% of a component B, the component A is one or a plurality of materials selected from compounds represented by a formula (I), and the component B is one or a plurality of materials selected from compounds represented by a formula (II), wherein in the formula (I), R1 and R2 are simultaneously hydrogen or are independently Cl or Br, R3 is hydrogen, C1-C4 alkyl, C1-C4 alkoxy or Cl, R4 is cyanoethyl or C1-C4 alkyl, m is 1 or 2, and R1 and R2 are simultaneously H when m is 1, and in the formula (II), R5 is H, CH3, Cl or Br, R6 is H, Cl or Br, R7 is Cl or CH3, R8 is C1-C4 alkyl or cyanoethyl, and n is 1 or 2. The dye composition of the present invention has advantages of excellent fastnesses and good pH value dependence. The formula (I) and the formula (II) are represented in the instruction.