Abstract: In this paper, an identification and transformationmethod for foundation parameters of airport pavement is proposed.Based on the theory of Winkler foundation plate and the theory of elasticsemi-space model, the theoretical deflections of the airport pavement arederived. The least square method is used to identify theresilience modulus of foundation E_0 and the response modulus K byfitting the testing and theoretical deflections. Thetransformations from E_0 to K and from Kto E_0 are also realized by using the equal deflection values of testingpoints. A testing deflection of an airport pavement is used as a numericalexample. Table 2 shows the identification results of K and E_0.Table 3 and Fig.2 show the high accuracy of the results by comparing the testingdeflection with the identification deflection. Table 4 and Table 5 show that wemay easily transform E_0 to K and then transform K to E_0 of theairport pavement.