There is a disorder-order transition in the PdAu25Fe21 and PdAu24Fe21Al4 alloys at critical temperatures of 500℃ and 550℃ respectively, The ordered phase is a superstructure of Cu3Au type. The disorder-order transition of the alloys brings about a physical change from the ferromagnetic state to antiferromagnetic state, considerable decrease in susceptibility and conductivity, and a change in the sign of thermo-electromo-tive force. The experimental results show that the anomalous behaviors of the alloys result from the atomic ordering and the change of d-band states.