The characteristics of 1553B and data structure bus are introduced. With PCCARD-1553B board of PCMCIA interface from Condor company and application program interface (API) function with source code level supporting the board, design ideas, methods and detailed processes for simulation test software with a bus controller terminal based on a general 1553B bus interface are proposed. The software is used to test special avionics equipments. It has high reliability and good adaptability and can meet different test requirements.