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Avionics full duplex switched Ethernet (AFDX) is widely used in recent years a new generation of aviation bus. Domestic research on the lack of related technical support. Traditional AFDX network data interaction testing technology in testing accuracy is poor, long test time, staff costs, such problems as lack of test data layer depth, formation reasons for these problems, puts forward AFDX network test 3 + 1 whole legal design. Using test data rectification technology (DVSER), the dynamic characteristics of the interactive data binding technology (HDBD) and intelligent positioning technology (HGYD) for targeted to solve problems. Through the simulation test proves that the proposed AFDX network testing every test data of 3 + 1 whole legal due to the traditional test method.