Abstract: In order to meet the especial demand for 1553B protocol processor,this article design the bus controller IP core of BU-61580. Using the design idea of the special chip,The integrated design program is described with modularization designing method on the FPGA chip.Every module is proved for lessening the mistake rate,then testing the whole logic.The designed IP core has lower cost and has a higher level in integration.After large of simulation,the results indicate that the functions of IP core could fit the designing demand. Through physical testing at last,the IP core can achieve every function and could be applied in series of situation.