To solve the inefficiency and high cost problems of the traditional detection equipment,an airborne receiver detector was developed for Instrument Landing System (ILS).Taking the DSP+FPGA architecture as the core,the circuit system of the ILS airborne receiver detector was composed together with the circuits of peripheral signal synthesis,interface converters,analog sampling and human-computer interaction.Such problems as signal simulation of instrument landing ground station,the ARINC429 protocol conversion based on FPGA,the design of detection strategy and data analysis based on DSP,were solved.The detector is able to detect the ILS airborne receiver,which is easy and flexible to use.